ozanimod (Rx)

Multiple Sclerosis

Indicated for relapsing forms of multiple sclerosis (MS), including clinically isolated syndrome, relapsing-remitting disease, and active secondary progressive disease

Initial dose titration and maintenance

• Days 1-4: 0.23 mg PO qDay
• Days 5-7: 0.46 mg PO qDay
• Day 8 and thereafter: 0.92 mg PO qDay

Ulcerative Colitis

Indicated for moderate-to-severe active ulcerative colitis

Initial dose titration and maintenance

• Days 1-4: 0.23 mg PO qDay
• Days 5-7: 0.46 mg PO qDay
• Day 8 and thereafter: 0.92 mg PO qDay

Dosage Modifications

Reinitiation after treatment interruption

• First 2 weeks of treatment: Reinitiate treatment using the titration regimen if a dose is missed
• After first 2 weeks of treatment: Continue with treatment as planned if a dose is missed

Renal impairment

• All severities: No dosage adjustment required

Hepatic impairment

• Not recommended; effect of hepatic impairment on the pharmacokinetics of the ozanimod major active metabolites is unknown

Dosing Considerations

Laboratory and examinations before initiating

• CBC count: Obtain recent (ie, within last 6 months or after discontinuing prior MS therapy) count, including lymphocyte count
• ECG: Determine if preexisting conduction abnormalities are present; consult cardiologist for patients with known preexisting conditions
• Liver function tests: Obtain recent (ie, within last 6 months) transaminase and bilirubin levels
• Ophthalmic assessment: In patients with history of uveitis or macular edema, evaluate fundus, including the macula

Assess medications

• Current or prior medications

  • Assess for additive immunosuppressive effects of current or past medications (eg, antineoplastics, immunosuppressives, immunomodulators)
  • Assess for drugs that could slow heart rate or atrioventricular conduction

• Vaccinations

  • Test for antibodies to varicella-zoster virus (VZV) before initiating
  • VZV vaccination of antibody-negative patients recommended before initiating ozanimod
  • If live attenuated vaccine immunizations required, administer at least 1 month before initiating ozanimod

Safety and efficacy not established

Contraindicated (10)

• isocarboxazid

  isocarboxazid and ozanimod both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Contraindicated. Coadministration of ozanimod with MAO-B inhibitors may decrease exposure of the active metabolites of ozanimod, which may inhibit MAO. The potential for a clinical interaction with MAO inhibitors has not been studied; however, the increased risk of nonselective MAO inhibition may lead to a hypertensive crisis. Allow at least 14 days to elapse between discontinuing ozanimod and initiating with MAO inhibitors.

• linezolid

  linezolid and ozanimod both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Contraindicated. Coadministration of ozanimod with MAO-B inhibitors may decrease exposure of the active metabolites of ozanimod, which may inhibit MAO. The potential for a clinical interaction with MAO inhibitors has not been studied; however, the increased risk of nonselective MAO inhibition may lead to a hypertensive crisis. Allow at least 14 days to elapse between discontinuing ozanimod and initiating with MAO inhibitors.

• phenelzine

  phenelzine and ozanimod both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Contraindicated. Coadministration of ozanimod with MAO-B inhibitors may decrease exposure of the active metabolites of ozanimod, which may inhibit MAO. The potential for a clinical interaction with MAO inhibitors has not been studied; however, the increased risk of nonselective MAO inhibition may lead to a hypertensive crisis. Allow at least 14 days to elapse between discontinuing ozanimod and initiating with MAO inhibitors.

• procarbazine

  procarbazine and ozanimod both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Contraindicated. Coadministration of ozanimod with MAO-B inhibitors may decrease exposure of the active metabolites of ozanimod, which may inhibit MAO. The potential for a clinical interaction with MAO inhibitors has not been studied; however, the increased risk of nonselective MAO inhibition may lead to a hypertensive crisis. Allow at least 14 days to elapse between discontinuing ozanimod and initiating with MAO inhibitors.

• rasagiline

  rasagiline and ozanimod both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Contraindicated. Coadministration of ozanimod with MAO-B inhibitors may decrease exposure of the active metabolites of ozanimod, which may inhibit MAO. The potential for a clinical interaction with MAO inhibitors has not been studied; however, the increased risk of nonselective MAO inhibition may lead to a hypertensive crisis. Allow at least 14 days to elapse between discontinuing ozanimod and initiating with MAO inhibitors.

• safinamide

  safinamide and ozanimod both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Contraindicated. Coadministration of ozanimod with MAO-B inhibitors may decrease exposure of the active metabolites of ozanimod, which may inhibit MAO. The potential for a clinical interaction with MAO inhibitors has not been studied; however, the increased risk of nonselective MAO inhibition may lead to a hypertensive crisis. Allow at least 14 days to elapse between discontinuing ozanimod and initiating with MAO inhibitors.

• selegiline

  selegiline and ozanimod both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Contraindicated. Coadministration of ozanimod with MAO-B inhibitors may decrease exposure of the active metabolites of ozanimod, which may inhibit MAO. The potential for a clinical interaction with MAO inhibitors has not been studied; however, the increased risk of nonselective MAO inhibition may lead to a hypertensive crisis. Allow at least 14 days to elapse between discontinuing ozanimod and initiating with MAO inhibitors.

• selegiline transdermal

  selegiline transdermal and ozanimod both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Contraindicated. Coadministration of ozanimod with MAO-B inhibitors may decrease exposure of the active metabolites of ozanimod, which may inhibit MAO. The potential for a clinical interaction with MAO inhibitors has not been studied; however, the increased risk of nonselective MAO inhibition may lead to a hypertensive crisis. Allow at least 14 days to elapse between discontinuing ozanimod and initiating with MAO inhibitors.

• tranylcypromine

  tranylcypromine and ozanimod both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Contraindicated. Coadministration of ozanimod with MAO-B inhibitors may decrease exposure of the active metabolites of ozanimod, which may inhibit MAO. The potential for a clinical interaction with MAO inhibitors has not been studied; however, the increased risk of nonselective MAO inhibition may lead to a hypertensive crisis. Allow at least 14 days to elapse between discontinuing ozanimod and initiating with MAO inhibitors.

• upadacitinib

  ozanimod, upadacitinib. Either increases effects of the other by immunosuppressive effects; risk of infection. Contraindicated.

Serious - Use Alternative (177)

• acalabrutinib

  acalabrutinib increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• adagrasib

  adagrasib, ozanimod. Either increases effects of the other by QTc interval. Avoid or Use Alternate Drug. Each drug prolongs the QTc interval, which may increased the risk of Torsade de pointes, other serious arryhthmias, and sudden death. If coadministration unavoidable, more frequent monitoring is recommended for such patients.

• adenovirus types 4 and 7 live, oral

  ozanimod decreases effects of adenovirus types 4 and 7 live, oral by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• alfentanil

  ozanimod and alfentanil both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• almotriptan

  ozanimod increases toxicity of almotriptan by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• amisulpride

  amisulpride and ozanimod both increase QTc interval. Avoid or Use Alternate Drug. ECG monitoring is recommended if coadministered.

• amitriptyline

  ozanimod increases toxicity of amitriptyline by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• amoxapine

  ozanimod increases toxicity of amoxapine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• amphetamine

  ozanimod increases toxicity of amphetamine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• amphetamine polistirex

  ozanimod increases toxicity of amphetamine polistirex by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• anagrelide

  anagrelide and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• aripiprazole

  aripiprazole and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• armodafinil

  ozanimod increases toxicity of armodafinil by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• artemether

  artemether and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• artemether/lumefantrine

  artemether/lumefantrine and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• atomoxetine

  atomoxetine and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• BCG vaccine live

  ozanimod decreases effects of BCG vaccine live by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• buprenorphine

  ozanimod and buprenorphine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.
  
  buprenorphine and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• buprenorphine buccal

  ozanimod and buprenorphine buccal both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.
  
  buprenorphine buccal and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• buprenorphine subdermal implant

  ozanimod and buprenorphine subdermal implant both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.
  
  buprenorphine subdermal implant and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• buprenorphine transdermal

  ozanimod and buprenorphine transdermal both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.
  
  buprenorphine transdermal and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• buprenorphine, long-acting injection

  ozanimod and buprenorphine, long-acting injection both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.
  
  buprenorphine, long-acting injection and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• bupropion

  ozanimod increases toxicity of bupropion by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• butorphanol

  ozanimod and butorphanol both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• caffeine

  ozanimod increases toxicity of caffeine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• carbamazepine

  carbamazepine will decrease the level or effect of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Coadministration of ozanimod (a CYP2C8 substrate) with strong CYP2C8 inducers decreases the exposure of the active metabolites (CC112273 and CC1084037) of ozanimod, which may decrease the effiicacy of ozanimod. Therefore, coadministration of ozanimod with strong CYP2C8 inducers is not recommended.

• ceritinib

  ceritinib and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• chloroquine

  chloroquine and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• cholera vaccine

  ozanimod decreases effects of cholera vaccine by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• citalopram

  ozanimod increases toxicity of citalopram by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• clomipramine

  ozanimod increases toxicity of clomipramine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• cobicistat

  cobicistat increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• codeine

  ozanimod and codeine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• cyclosporine

  cyclosporine increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .
  
  ozanimod, cyclosporine. Either increases effects of the other by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• dabrafenib

  dabrafenib increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• darolutamide

  darolutamide increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• dengue vaccine

  ozanimod decreases effects of dengue vaccine by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• desflurane

  desflurane and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• desipramine

  ozanimod increases toxicity of desipramine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• desvenlafaxine

  ozanimod increases toxicity of desvenlafaxine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• dexmethylphenidate

  ozanimod increases toxicity of dexmethylphenidate by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• dextroamphetamine

  ozanimod increases toxicity of dextroamphetamine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• diethylpropion

  ozanimod increases toxicity of diethylpropion by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• digoxin

  ozanimod increases toxicity of digoxin by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• dipyridamole

  dipyridamole increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• dobutamine

  ozanimod increases toxicity of dobutamine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• donepezil

  donepezil and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• dopamine

  ozanimod increases toxicity of dopamine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• doxepin

  ozanimod increases toxicity of doxepin by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.
  
  doxepin and ozanimod both increase QTc interval. Contraindicated.

• droxidopa

  ozanimod increases toxicity of droxidopa by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• duloxetine

  ozanimod increases toxicity of duloxetine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• Ebola Zaire vaccine

  ozanimod decreases effects of Ebola Zaire vaccine by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• efavirenz

  efavirenz and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• eletriptan

  ozanimod increases toxicity of eletriptan by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• eliglustat

  eliglustat and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• eltrombopag

  eltrombopag increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• eluxadoline

  eluxadoline increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• ephedrine

  ozanimod increases toxicity of ephedrine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• epinephrine

  ozanimod increases toxicity of epinephrine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• escitalopram

  ozanimod increases toxicity of escitalopram by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• fenoldopam

  ozanimod increases toxicity of fenoldopam by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• fentanyl

  ozanimod and fentanyl both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• fentanyl intranasal

  ozanimod and fentanyl intranasal both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• fentanyl transdermal

  ozanimod and fentanyl transdermal both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• fentanyl transmucosal

  ozanimod and fentanyl transmucosal both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• flibanserin

  ozanimod increases toxicity of flibanserin by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• fluoxetine

  ozanimod increases toxicity of fluoxetine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• fluvoxamine

  ozanimod increases toxicity of fluvoxamine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because active metabolite of ozanimod inhibits MAO-B in vitro, there is potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use. .

• fosphenytoin

  fosphenytoin will decrease the level or effect of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Coadministration of ozanimod (a CYP2C8 substrate) with strong CYP2C8 inducers decreases the exposure of the active metabolites (CC112273 and CC1084037) of ozanimod, which may decrease the effiicacy of ozanimod. Therefore, coadministration of ozanimod with strong CYP2C8 inducers is not recommended.

• frovatriptan

  ozanimod increases toxicity of frovatriptan by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• gefitinib

  gefitinib increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• gilteritinib

  gilteritinib and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• granisetron

  granisetron and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• hydrocodone

  ozanimod and hydrocodone both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• hydromorphone

  ozanimod and hydromorphone both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• hydroxyzine

  hydroxyzine and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• imatinib

  imatinib increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• imipramine

  ozanimod increases toxicity of imipramine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• inamrinone

  ozanimod increases toxicity of inamrinone by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• influenza virus vaccine quadrivalent, intranasal

  ozanimod decreases effects of influenza virus vaccine quadrivalent, intranasal by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• isoflurane

  isoflurane and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• isoproterenol

  ozanimod increases toxicity of isoproterenol by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• itraconazole

  itraconazole and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• ketoconazole

  ketoconazole increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• lapatinib

  lapatinib increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• lasmiditan

  lasmiditan increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .
  
  ozanimod increases toxicity of lasmiditan by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• leniolisib

  leniolisib will increase the level or effect of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Leniolisib, a BCRP inhibitor, may increase systemic exposure of BCRP substrates

• levoketoconazole

  levoketoconazole increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• levomilnacipran

  ozanimod increases toxicity of levomilnacipran by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• levorphanol

  ozanimod and levorphanol both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• lisdexamfetamine

  ozanimod increases toxicity of lisdexamfetamine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• lithium

  ozanimod increases toxicity of lithium by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.
  
  lithium and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• loxicodegol

  ozanimod and loxicodegol both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• maprotiline

  ozanimod increases toxicity of maprotiline by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• measles (rubeola) vaccine

  ozanimod decreases effects of measles (rubeola) vaccine by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• measles mumps and rubella vaccine, live

  ozanimod decreases effects of measles mumps and rubella vaccine, live by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• measles, mumps, rubella and varicella vaccine, live

  ozanimod decreases effects of measles, mumps, rubella and varicella vaccine, live by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• meperidine

  ozanimod and meperidine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• methadone

  ozanimod and methadone both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• methamphetamine

  ozanimod increases toxicity of methamphetamine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• methylphenidate

  ozanimod increases toxicity of methylphenidate by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• milnacipran

  ozanimod increases toxicity of milnacipran by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• milrinone

  ozanimod increases toxicity of milrinone by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• mirabegron

  ozanimod increases toxicity of mirabegron by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• mirtazapine

  mirtazapine and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• mobocertinib

  mobocertinib and ozanimod both increase QTc interval. Avoid or Use Alternate Drug. If coadministration unavoidable, reduce mobocertinib dose and monitor QTc interval more frequently.

• modafinil

  ozanimod increases toxicity of modafinil by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• morphine

  ozanimod and morphine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• nalbuphine

  ozanimod and nalbuphine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• naratriptan

  ozanimod increases toxicity of naratriptan by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• nefazodone

  ozanimod increases toxicity of nefazodone by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• norepinephrine

  ozanimod increases toxicity of norepinephrine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• nortriptyline

  ozanimod increases toxicity of nortriptyline by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• nylidrin

  ozanimod increases toxicity of nylidrin by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• oliceridine

  ozanimod and oliceridine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• osimertinib

  osimertinib increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• oxaliplatin

  oxaliplatin and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• oxycodone

  ozanimod and oxycodone both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• oxymetazoline intranasal

  ozanimod increases toxicity of oxymetazoline intranasal by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• oxymorphone

  ozanimod and oxymorphone both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• pantoprazole

  pantoprazole increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• paroxetine

  ozanimod increases toxicity of paroxetine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• pentazocine

  ozanimod and pentazocine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• phendimetrazine

  ozanimod increases toxicity of phendimetrazine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• phenobarbital

  phenobarbital will decrease the level or effect of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Coadministration of ozanimod (a CYP2C8 substrate) with strong CYP2C8 inducers decreases the exposure of the active metabolites (CC112273 and CC1084037) of ozanimod, which may decrease the effiicacy of ozanimod. Therefore, coadministration of ozanimod with strong CYP2C8 inducers is not recommended.

• phentermine

  ozanimod increases toxicity of phentermine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• phenytoin

  phenytoin will decrease the level or effect of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Coadministration of ozanimod (a CYP2C8 substrate) with strong CYP2C8 inducers decreases the exposure of the active metabolites (CC112273 and CC1084037) of ozanimod, which may decrease the effiicacy of ozanimod. Therefore, coadministration of ozanimod with strong CYP2C8 inducers is not recommended.

• poliovirus vaccine live oral trivalent

  ozanimod decreases effects of poliovirus vaccine live oral trivalent by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• ponatinib

  ponatinib increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• ponesimod

  ponesimod, ozanimod. Either increases effects of the other by pharmacodynamic synergism. Avoid or Use Alternate Drug. Consult cardiologist if considering treatment. Coadministration of ponesimod with drugs that decrease HR may have additive effects on decreasing HR and should generally not be initiated in these patients.

• primaquine

  primaquine and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• primidone

  primidone will decrease the level or effect of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Coadministration of ozanimod (a CYP2C8 substrate) with strong CYP2C8 inducers decreases the exposure of the active metabolites (CC112273 and CC1084037) of ozanimod, which may decrease the effiicacy of ozanimod. Therefore, coadministration of ozanimod with strong CYP2C8 inducers is not recommended.

• protriptyline

  ozanimod increases toxicity of protriptyline by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• pseudoephedrine

  ozanimod increases toxicity of pseudoephedrine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• regorafenib

  regorafenib increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• remifentanil

  ozanimod and remifentanil both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• rifampin

  rifampin will decrease the level or effect of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Coadministration of ozanimod (a CYP2C8 substrate) with strong CYP2C8 inducers decreases the exposure of the active metabolites (CC112273 and CC1084037) of ozanimod, which may decrease the effiicacy of ozanimod. Therefore, coadministration of ozanimod with strong CYP2C8 inducers is not recommended.

• rifapentine

  rifapentine will decrease the level or effect of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Coadministration of ozanimod (a CYP2C8 substrate) with strong CYP2C8 inducers decreases the exposure of the active metabolites (CC112273 and CC1084037) of ozanimod, which may decrease the effiicacy of ozanimod. Therefore, coadministration of ozanimod with strong CYP2C8 inducers is not recommended.

• rizatriptan

  ozanimod increases toxicity of rizatriptan by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• rolapitant

  rolapitant increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• rotavirus oral vaccine, live

  ozanimod decreases effects of rotavirus oral vaccine, live by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• rubella vaccine

  ozanimod decreases effects of rubella vaccine by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• safinamide

  safinamide increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• secobarbital

  secobarbital will decrease the level or effect of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Coadministration of ozanimod (a CYP2C8 substrate) with strong CYP2C8 inducers decreases the exposure of the active metabolites (CC112273 and CC1084037) of ozanimod, which may decrease the effiicacy of ozanimod. Therefore, coadministration of ozanimod with strong CYP2C8 inducers is not recommended.

• serdexmethylphenidate/dexmethylphenidate

  ozanimod increases toxicity of serdexmethylphenidate/dexmethylphenidate by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• sertraline

  ozanimod increases toxicity of sertraline by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• sevoflurane

  sevoflurane and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• smallpox (vaccinia) and monkeypox vaccine, live, nonreplicating

  ozanimod decreases effects of smallpox (vaccinia) vaccine, attenuated by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• smallpox (vaccinia) vaccine, attenuated

  ozanimod decreases effects of smallpox (vaccinia) vaccine, attenuated by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• smallpox (vaccinia) vaccine, live

  ozanimod decreases effects of smallpox (vaccinia) vaccine, live by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• St John's Wort

  ozanimod increases toxicity of St John's Wort by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• stiripentol

  stiripentol increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• sufentanil

  ozanimod and sufentanil both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• sufentanil SL

  ozanimod and sufentanil SL both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• sumatriptan

  ozanimod increases toxicity of sumatriptan by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• sumatriptan intranasal

  ozanimod increases toxicity of sumatriptan intranasal by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• sumatriptan transdermal

  ozanimod increases toxicity of sumatriptan transdermal by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• sunitinib

  sunitinib increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• tafamidis

  tafamidis increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• tafamidis meglumine

  tafamidis meglumine increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• tapentadol

  ozanimod increases toxicity of tapentadol by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• tramadol

  ozanimod increases toxicity of tramadol by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• trazodone

  ozanimod increases levels of trazodone by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• trimipramine

  ozanimod increases toxicity of trimipramine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• typhoid polysaccharide vaccine

  ozanimod decreases effects of typhoid polysaccharide vaccine by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• typhoid vaccine live

  ozanimod decreases effects of typhoid vaccine live by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• vandetanib

  vandetanib increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• varicella virus vaccine live

  ozanimod decreases effects of varicella virus vaccine live by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• velpatasvir

  velpatasvir increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• vemurafenib

  vemurafenib increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• venlafaxine

  ozanimod increases toxicity of venlafaxine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• verapamil

  ozanimod increases toxicity of verapamil by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• vilazodone

  ozanimod increases toxicity of vilazodone by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• yellow fever vaccine

  ozanimod decreases effects of yellow fever vaccine by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• zolmitriptan

  ozanimod increases toxicity of zolmitriptan by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• zolmitriptan transdermal

  ozanimod increases toxicity of zolmitriptan transdermal by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• zoster vaccine live

  ozanimod decreases effects of zoster vaccine live by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

Monitor Closely (169)

• abatacept

  ozanimod, abatacept. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• albuterol

  albuterol and ozanimod both increase QTc interval. Use Caution/Monitor.

• alfuzosin

  ozanimod and alfuzosin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• amiodarone

  ozanimod and amiodarone both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• amitriptyline

  ozanimod and amitriptyline both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• amoxapine

  ozanimod and amoxapine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• anakinra

  ozanimod, anakinra. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• antithymocyte globulin equine

  ozanimod, antithymocyte globulin equine. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• antithymocyte globulin rabbit

  ozanimod, antithymocyte globulin rabbit. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• apomorphine

  ozanimod and apomorphine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• arformoterol

  ozanimod and arformoterol both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• arsenic trioxide

  ozanimod and arsenic trioxide both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• artemether/lumefantrine

  ozanimod and artemether/lumefantrine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• asenapine

  ozanimod and asenapine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• asenapine transdermal

  asenapine transdermal and ozanimod both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• azathioprine

  ozanimod, azathioprine. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• azithromycin

  ozanimod and azithromycin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• basiliximab

  ozanimod, basiliximab. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• bedaquiline

  ozanimod and bedaquiline both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• belatacept

  ozanimod, belatacept. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• betamethasone

  ozanimod, betamethasone. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• C1 esterase inhibitor recombinant

  ozanimod, C1 esterase inhibitor recombinant. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• C1 inhibitor human

  ozanimod, C1 inhibitor human. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• certolizumab pegol

  ozanimod, certolizumab pegol. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• chlorpromazine

  ozanimod and chlorpromazine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• ciprofloxacin

  ozanimod and ciprofloxacin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• citalopram

  ozanimod and citalopram both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• clarithromycin

  ozanimod and clarithromycin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• clofazimine

  ozanimod and clofazimine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• clomipramine

  ozanimod and clomipramine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• clozapine

  ozanimod and clozapine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• corticotropin

  ozanimod, corticotropin. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• cortisone

  ozanimod, cortisone. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• crizotinib

  ozanimod and crizotinib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• dasatinib

  ozanimod and dasatinib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• deflazacort

  ozanimod, deflazacort. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• degarelix

  ozanimod and degarelix both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• desipramine

  ozanimod and desipramine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• deutetrabenazine

  ozanimod and deutetrabenazine both increase QTc interval. Use Caution/Monitor. At the maximum recommended dose, deutetrabenazine does not prolong QT interval to a clinically relevant extent. Certain circumstances may increase risk of torsade de pointes and/or sudden death in association with drugs that prolong the QTc interval (eg, bradycardia, hypokalemia or hypomagnesemia, coadministration with other drugs that prolong QTc interval, presence of congenital QT prolongation).

• dexamethasone

  ozanimod, dexamethasone. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• dimethyl fumarate

  ozanimod, dimethyl fumarate. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• diroximel fumarate

  ozanimod, diroximel fumarate. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• disopyramide

  ozanimod and disopyramide both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• dofetilide

  ozanimod and dofetilide both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• dolasetron

  ozanimod and dolasetron both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• dronedarone

  ozanimod and dronedarone both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• droperidol

  ozanimod and droperidol both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• emapalumab

  ozanimod, emapalumab. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• encorafenib

  ozanimod and encorafenib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.
  
  encorafenib will increase the level or effect of ozanimod by Other (see comment). Modify Therapy/Monitor Closely. Encorafenib (a BCRP inhibitor) may increase the concentration and toxicities of BCRP substrates. Closely monitor for signs and symptoms of increased exposure and consider adjusting the dose of these substrates.

• entrectinib

  ozanimod and entrectinib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• eribulin

  ozanimod and eribulin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• erythromycin base

  ozanimod and erythromycin base both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• erythromycin ethylsuccinate

  ozanimod and erythromycin ethylsuccinate both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• erythromycin lactobionate

  ozanimod and erythromycin lactobionate both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• erythromycin stearate

  ozanimod and erythromycin stearate both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• escitalopram

  ozanimod and escitalopram both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• etanercept

  ozanimod, etanercept. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• ezogabine

  ozanimod and ezogabine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• fingolimod

  ozanimod, fingolimod. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• flecainide

  ozanimod and flecainide both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• fluconazole

  ozanimod and fluconazole both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• fludrocortisone

  ozanimod, fludrocortisone. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• fluoxetine

  ozanimod and fluoxetine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• fluphenazine

  ozanimod and fluphenazine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• formoterol

  ozanimod and formoterol both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• foscarnet

  ozanimod and foscarnet both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• fostemsavir

  fostemsavir will increase the level or effect of ozanimod by Other (see comment). Modify Therapy/Monitor Closely. Fostemsavir inhibits BCRP transporters. If possible, avoid coadministration or modify dose of BCRP substrate coadministered with fostemsavir.

• gemfibrozil

  gemfibrozil will increase the level or effect of ozanimod by Other (see comment). Modify Therapy/Monitor Closely. Coadministration of ozanimod (a CYP2C8 substrate) with strong CYP2C8 inhibitors increases the exposure of the active metabolites (CC112273 and CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. Therefore, coadministration of ozanimod with strong CYP2C8 inhibitors is not recommended.

• gemifloxacin

  ozanimod and gemifloxacin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• glasdegib

  ozanimod and glasdegib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• glatiramer

  ozanimod, glatiramer. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• haloperidol

  ozanimod and haloperidol both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• hydroxychloroquine sulfate

  ozanimod and hydroxychloroquine sulfate both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.
  
  ozanimod, hydroxychloroquine sulfate. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• ibutilide

  ozanimod and ibutilide both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• icatibant

  ozanimod, icatibant. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• iloperidone

  ozanimod and iloperidone both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• indacaterol, inhaled

  ozanimod and indacaterol, inhaled both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• indapamide

  ozanimod and indapamide both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• infliximab

  ozanimod, infliximab. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• inotuzumab

  ozanimod and inotuzumab both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• interferon alfa n3

  ozanimod, interferon alfa n3. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• interferon alfacon 1

  ozanimod, interferon alfacon 1. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• interferon beta 1a

  ozanimod, interferon beta 1a. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• interferon beta 1b

  ozanimod, interferon beta 1b. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• isradipine

  ozanimod and isradipine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• lapatinib

  ozanimod and lapatinib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• leflunomide

  ozanimod, leflunomide. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• levofloxacin

  ozanimod and levofloxacin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• lofexidine

  ozanimod and lofexidine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• lopinavir

  ozanimod and lopinavir both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• maprotiline

  ozanimod and maprotiline both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• mefloquine

  ozanimod and mefloquine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• mercaptopurine

  ozanimod, mercaptopurine. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• methadone

  ozanimod and methadone both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• methotrexate

  ozanimod, methotrexate. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• methylprednisolone

  ozanimod, methylprednisolone. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• mifepristone

  ozanimod and mifepristone both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• mometasone sinus implant

  ozanimod, mometasone sinus implant. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• monomethyl fumarate

  ozanimod, monomethyl fumarate. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• moxifloxacin

  ozanimod and moxifloxacin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• muromonab CD3

  ozanimod, muromonab CD3. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• mycophenolate

  ozanimod, mycophenolate. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• nilotinib

  ozanimod and nilotinib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• nortriptyline

  ozanimod and nortriptyline both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• octreotide

  ozanimod and octreotide both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• ofloxacin

  ozanimod and ofloxacin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• olanzapine

  ozanimod and olanzapine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• omaveloxolone

  omaveloxolone will decrease the level or effect of ozanimod by Other (see comment). Use Caution/Monitor. Omaveloxolone may reduce systemic exposure of sensitive CYP2C8 substrates. Check prescribing information of substrate if dosage modification is needed.

• ondansetron

  ozanimod and ondansetron both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• osilodrostat

  ozanimod and osilodrostat both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• osimertinib

  ozanimod and osimertinib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• oteseconazole

  oteseconazole will increase the level or effect of ozanimod by Other (see comment). Modify Therapy/Monitor Closely. Otesezonale, a BCRP inhibitor, may increase the effects and risk of toxicities of BCRP substrates. Use lowest starting dose of BCRP substrate, or consider reducing BCRP substrate dose.

• paliperidone

  ozanimod and paliperidone both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• panobinostat

  ozanimod and panobinostat both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• pasireotide

  ozanimod and pasireotide both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• pazopanib

  ozanimod and pazopanib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• peginterferon beta-1a

  ozanimod, peginterferon beta-1a. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• pentamidine

  ozanimod and pentamidine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• perphenazine

  ozanimod and perphenazine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• pimavanserin

  ozanimod and pimavanserin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• pimozide

  ozanimod and pimozide both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• pitolisant

  ozanimod and pitolisant both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• ponesimod

  ponesimod and ozanimod both increase immunosuppressive effects; risk of infection. Use Caution/Monitor. Caution if coadministered because of additive immunosuppressive effects during such therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs to avoid unintended additive immunosuppressive effects.

• posaconazole

  ozanimod and posaconazole both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• prednisolone

  ozanimod, prednisolone. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• prednisone

  ozanimod, prednisone. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• procainamide

  ozanimod and procainamide both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• propafenone

  ozanimod and propafenone both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• protriptyline

  ozanimod and protriptyline both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• quetiapine

  ozanimod and quetiapine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• quinidine

  ozanimod and quinidine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• quinine

  ozanimod and quinine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• ranolazine

  ozanimod and ranolazine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• remestemcel-L

  ozanimod, remestemcel-L. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• ribociclib

  ozanimod and ribociclib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• rilonacept

  ozanimod, rilonacept. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• rilpivirine

  ozanimod and rilpivirine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• risperidone

  ozanimod and risperidone both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• ritonavir

  ritonavir will increase the level or effect of ozanimod by Other (see comment). Modify Therapy/Monitor Closely. Coadministration of ozanimod (a CYP2C8 substrate) with strong CYP2C8 inhibitors increases the exposure of the active metabolites (CC112273 and CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. Therefore, coadministration of ozanimod with strong CYP2C8 inhibitors is not recommended.
  
  ozanimod and ritonavir both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• romidepsin

  ozanimod and romidepsin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• saquinavir

  ozanimod and saquinavir both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• sertraline

  ozanimod and sertraline both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• siltuximab

  ozanimod, siltuximab. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• siponimod

  ozanimod, siponimod. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• sirolimus

  ozanimod, sirolimus. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• sirolimus intravitreal

  ozanimod, sirolimus intravitreal. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• solifenacin

  ozanimod and solifenacin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• sorafenib

  ozanimod and sorafenib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• sotalol

  ozanimod and sotalol both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• sunitinib

  ozanimod and sunitinib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• tacrolimus

  ozanimod and tacrolimus both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.
  
  ozanimod, tacrolimus. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• telavancin

  ozanimod and telavancin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• tetrabenazine

  ozanimod and tetrabenazine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• thioridazine

  ozanimod and thioridazine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• thiothixene

  ozanimod and thiothixene both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• toremifene

  ozanimod and toremifene both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• triamcinolone acetonide extended-release injectable suspension

  ozanimod, triamcinolone acetonide extended-release injectable suspension. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• triamcinolone acetonide injectable suspension

  ozanimod, triamcinolone acetonide injectable suspension. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• trimipramine

  ozanimod and trimipramine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• valbenazine

  valbenazine and ozanimod both increase QTc interval. Use Caution/Monitor.

• vandetanib

  ozanimod and vandetanib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• vardenafil

  ozanimod and vardenafil both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• vedolizumab

  ozanimod, vedolizumab. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• vemurafenib

  ozanimod and vemurafenib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• vilanterol/fluticasone furoate inhaled

  ozanimod and vilanterol/fluticasone furoate inhaled both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• voclosporin

  voclosporin, ozanimod. Either increases effects of the other by QTc interval. Use Caution/Monitor.

• voriconazole

  ozanimod and voriconazole both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• vorinostat

  ozanimod and vorinostat both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• ziprasidone

  ozanimod and ziprasidone both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

Minor (31)

• anthrax vaccine adsorbed

  ozanimod decreases effects of anthrax vaccine adsorbed by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• haemophilus influenzae type b vaccine

  ozanimod decreases effects of haemophilus influenzae type b vaccine by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• hepatitis A vaccine inactivated

  ozanimod decreases effects of hepatitis A vaccine inactivated by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• hepatitis a/b vaccine

  ozanimod decreases effects of hepatitis a/b vaccine by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• hepatitis b vaccine

  ozanimod decreases effects of hepatitis b vaccine by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• HIV vaccine

  ozanimod decreases effects of HIV vaccine by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• human papillomavirus vaccine, bivalent

  ozanimod decreases effects of human papillomavirus vaccine, bivalent by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• human papillomavirus vaccine, nonavalent

  ozanimod decreases effects of human papillomavirus vaccine, nonavalent by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• human papillomavirus vaccine, quadrivalent

  ozanimod decreases effects of human papillomavirus vaccine, quadrivalent by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• influenza A (H5N1) vaccine

  ozanimod decreases effects of influenza A (H5N1) vaccine by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• influenza virus vaccine (H5N1), adjuvanted

  ozanimod decreases effects of influenza virus vaccine (H5N1), adjuvanted by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• influenza virus vaccine quadrivalent

  ozanimod decreases effects of influenza virus vaccine quadrivalent by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• influenza virus vaccine quadrivalent, adjuvanted

  ozanimod decreases effects of influenza virus vaccine quadrivalent, adjuvanted by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• influenza virus vaccine quadrivalent, cell-cultured

  ozanimod decreases effects of influenza virus vaccine quadrivalent, cell-cultured by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• influenza virus vaccine quadrivalent, recombinant

  ozanimod decreases effects of influenza virus vaccine quadrivalent, recombinant by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• influenza virus vaccine trivalent

  ozanimod decreases effects of influenza virus vaccine trivalent by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• influenza virus vaccine trivalent, adjuvanted

  ozanimod decreases effects of influenza virus vaccine trivalent, adjuvanted by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• influenza virus vaccine trivalent, recombinant

  ozanimod decreases effects of influenza virus vaccine trivalent, recombinant by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• Japanese encephalitis virus vaccine

  ozanimod decreases effects of Japanese encephalitis virus vaccine by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• meningococcal A C Y and W-135 diphtheria conjugate vaccine

  ozanimod decreases effects of meningococcal A C Y and W-135 diphtheria conjugate vaccine by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• meningococcal A C Y and W-135 polysaccharide vaccine combined

  ozanimod decreases effects of meningococcal A C Y and W-135 polysaccharide vaccine combined by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• meningococcal C and Y/haemophilus influenza type B vaccine

  ozanimod decreases effects of meningococcal C and Y/haemophilus influenza type B vaccine by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• meningococcal group B vaccine

  ozanimod decreases effects of meningococcal group B vaccine by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• pneumococcal vaccine 13-valent

  ozanimod decreases effects of pneumococcal vaccine 13-valent by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• pneumococcal vaccine heptavalent

  ozanimod decreases effects of pneumococcal vaccine heptavalent by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• pneumococcal vaccine polyvalent

  ozanimod decreases effects of pneumococcal vaccine polyvalent by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• poliovirus vaccine inactivated

  ozanimod decreases effects of poliovirus vaccine inactivated by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• rabies vaccine

  ozanimod decreases effects of rabies vaccine by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• rabies vaccine chick embryo cell derived

  ozanimod decreases effects of rabies vaccine chick embryo cell derived by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• tetanus toxoid adsorbed or fluid

  ozanimod decreases effects of tetanus toxoid adsorbed or fluid by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• zoster vaccine recombinant

  ozanimod decreases effects of zoster vaccine recombinant by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• abatacept

  Monitor Closely (1)ozanimod, abatacept. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• acalabrutinib

  Serious - Use Alternative (1)acalabrutinib increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• adagrasib

  Serious - Use Alternative (1)adagrasib, ozanimod. Either increases effects of the other by QTc interval. Avoid or Use Alternate Drug. Each drug prolongs the QTc interval, which may increased the risk of Torsade de pointes, other serious arryhthmias, and sudden death. If coadministration unavoidable, more frequent monitoring is recommended for such patients.

• adenovirus types 4 and 7 live, oral

  Serious - Use Alternative (1)ozanimod decreases effects of adenovirus types 4 and 7 live, oral by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• albuterol

  Monitor Closely (1)albuterol and ozanimod both increase QTc interval. Use Caution/Monitor.

• alfentanil

  Serious - Use Alternative (1)ozanimod and alfentanil both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• alfuzosin

  Monitor Closely (1)ozanimod and alfuzosin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• almotriptan

  Serious - Use Alternative (1)ozanimod increases toxicity of almotriptan by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• amiodarone

  Monitor Closely (1)ozanimod and amiodarone both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• amisulpride

  Serious - Use Alternative (1)amisulpride and ozanimod both increase QTc interval. Avoid or Use Alternate Drug. ECG monitoring is recommended if coadministered.

• amitriptyline

  Monitor Closely (1)ozanimod and amitriptyline both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.Serious - Use Alternative (1)ozanimod increases toxicity of amitriptyline by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• amoxapine

  Monitor Closely (1)ozanimod and amoxapine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.Serious - Use Alternative (1)ozanimod increases toxicity of amoxapine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• amphetamine

  Serious - Use Alternative (1)ozanimod increases toxicity of amphetamine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• amphetamine polistirex

  Serious - Use Alternative (1)ozanimod increases toxicity of amphetamine polistirex by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• anagrelide

  Serious - Use Alternative (1)anagrelide and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• anakinra

  Monitor Closely (1)ozanimod, anakinra. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• anthrax vaccine adsorbed

  Minor (1)ozanimod decreases effects of anthrax vaccine adsorbed by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• antithymocyte globulin equine

  Monitor Closely (1)ozanimod, antithymocyte globulin equine. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• antithymocyte globulin rabbit

  Monitor Closely (1)ozanimod, antithymocyte globulin rabbit. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• apomorphine

  Monitor Closely (1)ozanimod and apomorphine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• arformoterol

  Monitor Closely (1)ozanimod and arformoterol both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• aripiprazole

  Serious - Use Alternative (1)aripiprazole and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• armodafinil

  Serious - Use Alternative (1)ozanimod increases toxicity of armodafinil by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• arsenic trioxide

  Monitor Closely (1)ozanimod and arsenic trioxide both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• artemether

  Serious - Use Alternative (1)artemether and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• artemether/lumefantrine

  Monitor Closely (1)ozanimod and artemether/lumefantrine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.Serious - Use Alternative (1)artemether/lumefantrine and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• asenapine

  Monitor Closely (1)ozanimod and asenapine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• asenapine transdermal

  Monitor Closely (1)asenapine transdermal and ozanimod both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• atomoxetine

  Serious - Use Alternative (1)atomoxetine and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• azathioprine

  Monitor Closely (1)ozanimod, azathioprine. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• azithromycin

  Monitor Closely (1)ozanimod and azithromycin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• basiliximab

  Monitor Closely (1)ozanimod, basiliximab. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• BCG vaccine live

  Serious - Use Alternative (1)ozanimod decreases effects of BCG vaccine live by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• bedaquiline

  Monitor Closely (1)ozanimod and bedaquiline both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• belatacept

  Monitor Closely (1)ozanimod, belatacept. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• betamethasone

  Monitor Closely (1)ozanimod, betamethasone. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• buprenorphine

  Serious - Use Alternative (2)ozanimod and buprenorphine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.
  
  buprenorphine and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• buprenorphine buccal

  Serious - Use Alternative (2)ozanimod and buprenorphine buccal both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.
  
  buprenorphine buccal and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• buprenorphine subdermal implant

  Serious - Use Alternative (2)ozanimod and buprenorphine subdermal implant both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.
  
  buprenorphine subdermal implant and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• buprenorphine transdermal

  Serious - Use Alternative (2)ozanimod and buprenorphine transdermal both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.
  
  buprenorphine transdermal and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• buprenorphine, long-acting injection

  Serious - Use Alternative (2)ozanimod and buprenorphine, long-acting injection both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.
  
  buprenorphine, long-acting injection and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• bupropion

  Serious - Use Alternative (1)ozanimod increases toxicity of bupropion by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• butorphanol

  Serious - Use Alternative (1)ozanimod and butorphanol both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• C1 esterase inhibitor recombinant

  Monitor Closely (1)ozanimod, C1 esterase inhibitor recombinant. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• C1 inhibitor human

  Monitor Closely (1)ozanimod, C1 inhibitor human. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• caffeine

  Serious - Use Alternative (1)ozanimod increases toxicity of caffeine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• carbamazepine

  Serious - Use Alternative (1)carbamazepine will decrease the level or effect of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Coadministration of ozanimod (a CYP2C8 substrate) with strong CYP2C8 inducers decreases the exposure of the active metabolites (CC112273 and CC1084037) of ozanimod, which may decrease the effiicacy of ozanimod. Therefore, coadministration of ozanimod with strong CYP2C8 inducers is not recommended.

• ceritinib

  Serious - Use Alternative (1)ceritinib and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• certolizumab pegol

  Monitor Closely (1)ozanimod, certolizumab pegol. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• chloroquine

  Serious - Use Alternative (1)chloroquine and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• chlorpromazine

  Monitor Closely (1)ozanimod and chlorpromazine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• cholera vaccine

  Serious - Use Alternative (1)ozanimod decreases effects of cholera vaccine by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• ciprofloxacin

  Monitor Closely (1)ozanimod and ciprofloxacin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• citalopram

  Monitor Closely (1)ozanimod and citalopram both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.Serious - Use Alternative (1)ozanimod increases toxicity of citalopram by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• clarithromycin

  Monitor Closely (1)ozanimod and clarithromycin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• clofazimine

  Monitor Closely (1)ozanimod and clofazimine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• clomipramine

  Monitor Closely (1)ozanimod and clomipramine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.Serious - Use Alternative (1)ozanimod increases toxicity of clomipramine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• clozapine

  Monitor Closely (1)ozanimod and clozapine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• cobicistat

  Serious - Use Alternative (1)cobicistat increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• codeine

  Serious - Use Alternative (1)ozanimod and codeine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• corticotropin

  Monitor Closely (1)ozanimod, corticotropin. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• cortisone

  Monitor Closely (1)ozanimod, cortisone. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• crizotinib

  Monitor Closely (1)ozanimod and crizotinib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• cyclosporine

  Serious - Use Alternative (2)cyclosporine increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .
  
  ozanimod, cyclosporine. Either increases effects of the other by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• dabrafenib

  Serious - Use Alternative (1)dabrafenib increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• darolutamide

  Serious - Use Alternative (1)darolutamide increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• dasatinib

  Monitor Closely (1)ozanimod and dasatinib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• deflazacort

  Monitor Closely (1)ozanimod, deflazacort. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• degarelix

  Monitor Closely (1)ozanimod and degarelix both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• dengue vaccine

  Serious - Use Alternative (1)ozanimod decreases effects of dengue vaccine by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• desflurane

  Serious - Use Alternative (1)desflurane and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• desipramine

  Monitor Closely (1)ozanimod and desipramine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.Serious - Use Alternative (1)ozanimod increases toxicity of desipramine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• desvenlafaxine

  Serious - Use Alternative (1)ozanimod increases toxicity of desvenlafaxine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• deutetrabenazine

  Monitor Closely (1)ozanimod and deutetrabenazine both increase QTc interval. Use Caution/Monitor. At the maximum recommended dose, deutetrabenazine does not prolong QT interval to a clinically relevant extent. Certain circumstances may increase risk of torsade de pointes and/or sudden death in association with drugs that prolong the QTc interval (eg, bradycardia, hypokalemia or hypomagnesemia, coadministration with other drugs that prolong QTc interval, presence of congenital QT prolongation).

• dexamethasone

  Monitor Closely (1)ozanimod, dexamethasone. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• dexmethylphenidate

  Serious - Use Alternative (1)ozanimod increases toxicity of dexmethylphenidate by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• dextroamphetamine

  Serious - Use Alternative (1)ozanimod increases toxicity of dextroamphetamine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• diethylpropion

  Serious - Use Alternative (1)ozanimod increases toxicity of diethylpropion by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• digoxin

  Serious - Use Alternative (1)ozanimod increases toxicity of digoxin by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• dimethyl fumarate

  Monitor Closely (1)ozanimod, dimethyl fumarate. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• dipyridamole

  Serious - Use Alternative (1)dipyridamole increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• diroximel fumarate

  Monitor Closely (1)ozanimod, diroximel fumarate. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• disopyramide

  Monitor Closely (1)ozanimod and disopyramide both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• dobutamine

  Serious - Use Alternative (1)ozanimod increases toxicity of dobutamine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• dofetilide

  Monitor Closely (1)ozanimod and dofetilide both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• dolasetron

  Monitor Closely (1)ozanimod and dolasetron both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• donepezil

  Serious - Use Alternative (1)donepezil and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• dopamine

  Serious - Use Alternative (1)ozanimod increases toxicity of dopamine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• doxepin

  Serious - Use Alternative (2)doxepin and ozanimod both increase QTc interval. Contraindicated.
  
  ozanimod increases toxicity of doxepin by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• dronedarone

  Monitor Closely (1)ozanimod and dronedarone both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• droperidol

  Monitor Closely (1)ozanimod and droperidol both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• droxidopa

  Serious - Use Alternative (1)ozanimod increases toxicity of droxidopa by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• duloxetine

  Serious - Use Alternative (1)ozanimod increases toxicity of duloxetine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• Ebola Zaire vaccine

  Serious - Use Alternative (1)ozanimod decreases effects of Ebola Zaire vaccine by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• efavirenz

  Serious - Use Alternative (1)efavirenz and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• eletriptan

  Serious - Use Alternative (1)ozanimod increases toxicity of eletriptan by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• eliglustat

  Serious - Use Alternative (1)eliglustat and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• eltrombopag

  Serious - Use Alternative (1)eltrombopag increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• eluxadoline

  Serious - Use Alternative (1)eluxadoline increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• emapalumab

  Monitor Closely (1)ozanimod, emapalumab. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• encorafenib

  Monitor Closely (2)ozanimod and encorafenib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.
  
  encorafenib will increase the level or effect of ozanimod by Other (see comment). Modify Therapy/Monitor Closely. Encorafenib (a BCRP inhibitor) may increase the concentration and toxicities of BCRP substrates. Closely monitor for signs and symptoms of increased exposure and consider adjusting the dose of these substrates.

• entrectinib

  Monitor Closely (1)ozanimod and entrectinib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• ephedrine

  Serious - Use Alternative (1)ozanimod increases toxicity of ephedrine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• epinephrine

  Serious - Use Alternative (1)ozanimod increases toxicity of epinephrine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• eribulin

  Monitor Closely (1)ozanimod and eribulin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• erythromycin base

  Monitor Closely (1)ozanimod and erythromycin base both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• erythromycin ethylsuccinate

  Monitor Closely (1)ozanimod and erythromycin ethylsuccinate both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• erythromycin lactobionate

  Monitor Closely (1)ozanimod and erythromycin lactobionate both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• erythromycin stearate

  Monitor Closely (1)ozanimod and erythromycin stearate both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• escitalopram

  Monitor Closely (1)ozanimod and escitalopram both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.Serious - Use Alternative (1)ozanimod increases toxicity of escitalopram by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• etanercept

  Monitor Closely (1)ozanimod, etanercept. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• ezogabine

  Monitor Closely (1)ozanimod and ezogabine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• fenoldopam

  Serious - Use Alternative (1)ozanimod increases toxicity of fenoldopam by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• fentanyl

  Serious - Use Alternative (1)ozanimod and fentanyl both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• fentanyl intranasal

  Serious - Use Alternative (1)ozanimod and fentanyl intranasal both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• fentanyl transdermal

  Serious - Use Alternative (1)ozanimod and fentanyl transdermal both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• fentanyl transmucosal

  Serious - Use Alternative (1)ozanimod and fentanyl transmucosal both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• fingolimod

  Monitor Closely (1)ozanimod, fingolimod. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• flecainide

  Monitor Closely (1)ozanimod and flecainide both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• flibanserin

  Serious - Use Alternative (1)ozanimod increases toxicity of flibanserin by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• fluconazole

  Monitor Closely (1)ozanimod and fluconazole both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• fludrocortisone

  Monitor Closely (1)ozanimod, fludrocortisone. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• fluoxetine

  Monitor Closely (1)ozanimod and fluoxetine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.Serious - Use Alternative (1)ozanimod increases toxicity of fluoxetine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• fluphenazine

  Monitor Closely (1)ozanimod and fluphenazine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• fluvoxamine

  Serious - Use Alternative (1)ozanimod increases toxicity of fluvoxamine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because active metabolite of ozanimod inhibits MAO-B in vitro, there is potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use. .

• formoterol

  Monitor Closely (1)ozanimod and formoterol both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• foscarnet

  Monitor Closely (1)ozanimod and foscarnet both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• fosphenytoin

  Serious - Use Alternative (1)fosphenytoin will decrease the level or effect of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Coadministration of ozanimod (a CYP2C8 substrate) with strong CYP2C8 inducers decreases the exposure of the active metabolites (CC112273 and CC1084037) of ozanimod, which may decrease the effiicacy of ozanimod. Therefore, coadministration of ozanimod with strong CYP2C8 inducers is not recommended.

• fostemsavir

  Monitor Closely (1)fostemsavir will increase the level or effect of ozanimod by Other (see comment). Modify Therapy/Monitor Closely. Fostemsavir inhibits BCRP transporters. If possible, avoid coadministration or modify dose of BCRP substrate coadministered with fostemsavir.

• frovatriptan

  Serious - Use Alternative (1)ozanimod increases toxicity of frovatriptan by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• gefitinib

  Serious - Use Alternative (1)gefitinib increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• gemfibrozil

  Monitor Closely (1)gemfibrozil will increase the level or effect of ozanimod by Other (see comment). Modify Therapy/Monitor Closely. Coadministration of ozanimod (a CYP2C8 substrate) with strong CYP2C8 inhibitors increases the exposure of the active metabolites (CC112273 and CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. Therefore, coadministration of ozanimod with strong CYP2C8 inhibitors is not recommended.

• gemifloxacin

  Monitor Closely (1)ozanimod and gemifloxacin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• gilteritinib

  Serious - Use Alternative (1)gilteritinib and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• glasdegib

  Monitor Closely (1)ozanimod and glasdegib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• glatiramer

  Monitor Closely (1)ozanimod, glatiramer. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• granisetron

  Serious - Use Alternative (1)granisetron and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• haemophilus influenzae type b vaccine

  Minor (1)ozanimod decreases effects of haemophilus influenzae type b vaccine by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• haloperidol

  Monitor Closely (1)ozanimod and haloperidol both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• hepatitis A vaccine inactivated

  Minor (1)ozanimod decreases effects of hepatitis A vaccine inactivated by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• hepatitis a/b vaccine

  Minor (1)ozanimod decreases effects of hepatitis a/b vaccine by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• hepatitis b vaccine

  Minor (1)ozanimod decreases effects of hepatitis b vaccine by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• HIV vaccine

  Minor (1)ozanimod decreases effects of HIV vaccine by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• human papillomavirus vaccine, bivalent

  Minor (1)ozanimod decreases effects of human papillomavirus vaccine, bivalent by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• human papillomavirus vaccine, nonavalent

  Minor (1)ozanimod decreases effects of human papillomavirus vaccine, nonavalent by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• human papillomavirus vaccine, quadrivalent

  Minor (1)ozanimod decreases effects of human papillomavirus vaccine, quadrivalent by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• hydrocodone

  Serious - Use Alternative (1)ozanimod and hydrocodone both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• hydromorphone

  Serious - Use Alternative (1)ozanimod and hydromorphone both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• hydroxychloroquine sulfate

  Monitor Closely (2)ozanimod, hydroxychloroquine sulfate. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.
  
  ozanimod and hydroxychloroquine sulfate both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• hydroxyzine

  Serious - Use Alternative (1)hydroxyzine and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• ibutilide

  Monitor Closely (1)ozanimod and ibutilide both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• icatibant

  Monitor Closely (1)ozanimod, icatibant. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• iloperidone

  Monitor Closely (1)ozanimod and iloperidone both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• imatinib

  Serious - Use Alternative (1)imatinib increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• imipramine

  Serious - Use Alternative (1)ozanimod increases toxicity of imipramine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• inamrinone

  Serious - Use Alternative (1)ozanimod increases toxicity of inamrinone by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• indacaterol, inhaled

  Monitor Closely (1)ozanimod and indacaterol, inhaled both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• indapamide

  Monitor Closely (1)ozanimod and indapamide both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• infliximab

  Monitor Closely (1)ozanimod, infliximab. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• influenza A (H5N1) vaccine

  Minor (1)ozanimod decreases effects of influenza A (H5N1) vaccine by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• influenza virus vaccine (H5N1), adjuvanted

  Minor (1)ozanimod decreases effects of influenza virus vaccine (H5N1), adjuvanted by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• influenza virus vaccine quadrivalent

  Minor (1)ozanimod decreases effects of influenza virus vaccine quadrivalent by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• influenza virus vaccine quadrivalent, adjuvanted

  Minor (1)ozanimod decreases effects of influenza virus vaccine quadrivalent, adjuvanted by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• influenza virus vaccine quadrivalent, cell-cultured

  Minor (1)ozanimod decreases effects of influenza virus vaccine quadrivalent, cell-cultured by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• influenza virus vaccine quadrivalent, intranasal

  Serious - Use Alternative (1)ozanimod decreases effects of influenza virus vaccine quadrivalent, intranasal by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• influenza virus vaccine quadrivalent, recombinant

  Minor (1)ozanimod decreases effects of influenza virus vaccine quadrivalent, recombinant by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• influenza virus vaccine trivalent

  Minor (1)ozanimod decreases effects of influenza virus vaccine trivalent by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• influenza virus vaccine trivalent, adjuvanted

  Minor (1)ozanimod decreases effects of influenza virus vaccine trivalent, adjuvanted by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• influenza virus vaccine trivalent, recombinant

  Minor (1)ozanimod decreases effects of influenza virus vaccine trivalent, recombinant by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• inotuzumab

  Monitor Closely (1)ozanimod and inotuzumab both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• interferon alfa n3

  Monitor Closely (1)ozanimod, interferon alfa n3. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• interferon alfacon 1

  Monitor Closely (1)ozanimod, interferon alfacon 1. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• interferon beta 1a

  Monitor Closely (1)ozanimod, interferon beta 1a. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• interferon beta 1b

  Monitor Closely (1)ozanimod, interferon beta 1b. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• isocarboxazid

  Contraindicated (1)isocarboxazid and ozanimod both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Contraindicated. Coadministration of ozanimod with MAO-B inhibitors may decrease exposure of the active metabolites of ozanimod, which may inhibit MAO. The potential for a clinical interaction with MAO inhibitors has not been studied; however, the increased risk of nonselective MAO inhibition may lead to a hypertensive crisis. Allow at least 14 days to elapse between discontinuing ozanimod and initiating with MAO inhibitors.

• isoflurane

  Serious - Use Alternative (1)isoflurane and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• isoproterenol

  Serious - Use Alternative (1)ozanimod increases toxicity of isoproterenol by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• isradipine

  Monitor Closely (1)ozanimod and isradipine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• itraconazole

  Serious - Use Alternative (1)itraconazole and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• Japanese encephalitis virus vaccine

  Minor (1)ozanimod decreases effects of Japanese encephalitis virus vaccine by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• ketoconazole

  Serious - Use Alternative (1)ketoconazole increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• lapatinib

  Monitor Closely (1)ozanimod and lapatinib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.Serious - Use Alternative (1)lapatinib increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• lasmiditan

  Serious - Use Alternative (2)lasmiditan increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .
  
  ozanimod increases toxicity of lasmiditan by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• leflunomide

  Monitor Closely (1)ozanimod, leflunomide. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• leniolisib

  Serious - Use Alternative (1)leniolisib will increase the level or effect of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Leniolisib, a BCRP inhibitor, may increase systemic exposure of BCRP substrates

• levofloxacin

  Monitor Closely (1)ozanimod and levofloxacin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• levoketoconazole

  Serious - Use Alternative (1)levoketoconazole increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• levomilnacipran

  Serious - Use Alternative (1)ozanimod increases toxicity of levomilnacipran by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• levorphanol

  Serious - Use Alternative (1)ozanimod and levorphanol both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• linezolid

  Contraindicated (1)linezolid and ozanimod both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Contraindicated. Coadministration of ozanimod with MAO-B inhibitors may decrease exposure of the active metabolites of ozanimod, which may inhibit MAO. The potential for a clinical interaction with MAO inhibitors has not been studied; however, the increased risk of nonselective MAO inhibition may lead to a hypertensive crisis. Allow at least 14 days to elapse between discontinuing ozanimod and initiating with MAO inhibitors.

• lisdexamfetamine

  Serious - Use Alternative (1)ozanimod increases toxicity of lisdexamfetamine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• lithium

  Serious - Use Alternative (2)ozanimod increases toxicity of lithium by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.
  
  lithium and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• lofexidine

  Monitor Closely (1)ozanimod and lofexidine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• lopinavir

  Monitor Closely (1)ozanimod and lopinavir both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• loxicodegol

  Serious - Use Alternative (1)ozanimod and loxicodegol both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• maprotiline

  Monitor Closely (1)ozanimod and maprotiline both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.Serious - Use Alternative (1)ozanimod increases toxicity of maprotiline by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• measles (rubeola) vaccine

  Serious - Use Alternative (1)ozanimod decreases effects of measles (rubeola) vaccine by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• measles mumps and rubella vaccine, live

  Serious - Use Alternative (1)ozanimod decreases effects of measles mumps and rubella vaccine, live by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• measles, mumps, rubella and varicella vaccine, live

  Serious - Use Alternative (1)ozanimod decreases effects of measles, mumps, rubella and varicella vaccine, live by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• mefloquine

  Monitor Closely (1)ozanimod and mefloquine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• meningococcal A C Y and W-135 diphtheria conjugate vaccine

  Minor (1)ozanimod decreases effects of meningococcal A C Y and W-135 diphtheria conjugate vaccine by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• meningococcal A C Y and W-135 polysaccharide vaccine combined

  Minor (1)ozanimod decreases effects of meningococcal A C Y and W-135 polysaccharide vaccine combined by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• meningococcal C and Y/haemophilus influenza type B vaccine

  Minor (1)ozanimod decreases effects of meningococcal C and Y/haemophilus influenza type B vaccine by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• meningococcal group B vaccine

  Minor (1)ozanimod decreases effects of meningococcal group B vaccine by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• meperidine

  Serious - Use Alternative (1)ozanimod and meperidine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• mercaptopurine

  Monitor Closely (1)ozanimod, mercaptopurine. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• methadone

  Monitor Closely (1)ozanimod and methadone both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.Serious - Use Alternative (1)ozanimod and methadone both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• methamphetamine

  Serious - Use Alternative (1)ozanimod increases toxicity of methamphetamine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• methotrexate

  Monitor Closely (1)ozanimod, methotrexate. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• methylphenidate

  Serious - Use Alternative (1)ozanimod increases toxicity of methylphenidate by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• methylprednisolone

  Monitor Closely (1)ozanimod, methylprednisolone. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• mifepristone

  Monitor Closely (1)ozanimod and mifepristone both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• milnacipran

  Serious - Use Alternative (1)ozanimod increases toxicity of milnacipran by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• milrinone

  Serious - Use Alternative (1)ozanimod increases toxicity of milrinone by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• mirabegron

  Serious - Use Alternative (1)ozanimod increases toxicity of mirabegron by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• mirtazapine

  Serious - Use Alternative (1)mirtazapine and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• mobocertinib

  Serious - Use Alternative (1)mobocertinib and ozanimod both increase QTc interval. Avoid or Use Alternate Drug. If coadministration unavoidable, reduce mobocertinib dose and monitor QTc interval more frequently.

• modafinil

  Serious - Use Alternative (1)ozanimod increases toxicity of modafinil by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• mometasone sinus implant

  Monitor Closely (1)ozanimod, mometasone sinus implant. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• monomethyl fumarate

  Monitor Closely (1)ozanimod, monomethyl fumarate. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• morphine

  Serious - Use Alternative (1)ozanimod and morphine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• moxifloxacin

  Monitor Closely (1)ozanimod and moxifloxacin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• muromonab CD3

  Monitor Closely (1)ozanimod, muromonab CD3. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• mycophenolate

  Monitor Closely (1)ozanimod, mycophenolate. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• nalbuphine

  Serious - Use Alternative (1)ozanimod and nalbuphine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• naratriptan

  Serious - Use Alternative (1)ozanimod increases toxicity of naratriptan by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• nefazodone

  Serious - Use Alternative (1)ozanimod increases toxicity of nefazodone by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• nilotinib

  Monitor Closely (1)ozanimod and nilotinib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• norepinephrine

  Serious - Use Alternative (1)ozanimod increases toxicity of norepinephrine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• nortriptyline

  Monitor Closely (1)ozanimod and nortriptyline both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.Serious - Use Alternative (1)ozanimod increases toxicity of nortriptyline by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• nylidrin

  Serious - Use Alternative (1)ozanimod increases toxicity of nylidrin by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• octreotide

  Monitor Closely (1)ozanimod and octreotide both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• ofloxacin

  Monitor Closely (1)ozanimod and ofloxacin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• olanzapine

  Monitor Closely (1)ozanimod and olanzapine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• oliceridine

  Serious - Use Alternative (1)ozanimod and oliceridine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• omaveloxolone

  Monitor Closely (1)omaveloxolone will decrease the level or effect of ozanimod by Other (see comment). Use Caution/Monitor. Omaveloxolone may reduce systemic exposure of sensitive CYP2C8 substrates. Check prescribing information of substrate if dosage modification is needed.

• ondansetron

  Monitor Closely (1)ozanimod and ondansetron both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• osilodrostat

  Monitor Closely (1)ozanimod and osilodrostat both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• osimertinib

  Monitor Closely (1)ozanimod and osimertinib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.Serious - Use Alternative (1)osimertinib increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• oteseconazole

  Monitor Closely (1)oteseconazole will increase the level or effect of ozanimod by Other (see comment). Modify Therapy/Monitor Closely. Otesezonale, a BCRP inhibitor, may increase the effects and risk of toxicities of BCRP substrates. Use lowest starting dose of BCRP substrate, or consider reducing BCRP substrate dose.

• oxaliplatin

  Serious - Use Alternative (1)oxaliplatin and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• oxycodone

  Serious - Use Alternative (1)ozanimod and oxycodone both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• oxymetazoline intranasal

  Serious - Use Alternative (1)ozanimod increases toxicity of oxymetazoline intranasal by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• oxymorphone

  Serious - Use Alternative (1)ozanimod and oxymorphone both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• paliperidone

  Monitor Closely (1)ozanimod and paliperidone both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• panobinostat

  Monitor Closely (1)ozanimod and panobinostat both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• pantoprazole

  Serious - Use Alternative (1)pantoprazole increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• paroxetine

  Serious - Use Alternative (1)ozanimod increases toxicity of paroxetine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• pasireotide

  Monitor Closely (1)ozanimod and pasireotide both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• pazopanib

  Monitor Closely (1)ozanimod and pazopanib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• peginterferon beta-1a

  Monitor Closely (1)ozanimod, peginterferon beta-1a. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• pentamidine

  Monitor Closely (1)ozanimod and pentamidine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• pentazocine

  Serious - Use Alternative (1)ozanimod and pentazocine both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• perphenazine

  Monitor Closely (1)ozanimod and perphenazine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• phendimetrazine

  Serious - Use Alternative (1)ozanimod increases toxicity of phendimetrazine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• phenelzine

  Contraindicated (1)phenelzine and ozanimod both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Contraindicated. Coadministration of ozanimod with MAO-B inhibitors may decrease exposure of the active metabolites of ozanimod, which may inhibit MAO. The potential for a clinical interaction with MAO inhibitors has not been studied; however, the increased risk of nonselective MAO inhibition may lead to a hypertensive crisis. Allow at least 14 days to elapse between discontinuing ozanimod and initiating with MAO inhibitors.

• phenobarbital

  Serious - Use Alternative (1)phenobarbital will decrease the level or effect of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Coadministration of ozanimod (a CYP2C8 substrate) with strong CYP2C8 inducers decreases the exposure of the active metabolites (CC112273 and CC1084037) of ozanimod, which may decrease the effiicacy of ozanimod. Therefore, coadministration of ozanimod with strong CYP2C8 inducers is not recommended.

• phentermine

  Serious - Use Alternative (1)ozanimod increases toxicity of phentermine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• phenytoin

  Serious - Use Alternative (1)phenytoin will decrease the level or effect of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Coadministration of ozanimod (a CYP2C8 substrate) with strong CYP2C8 inducers decreases the exposure of the active metabolites (CC112273 and CC1084037) of ozanimod, which may decrease the effiicacy of ozanimod. Therefore, coadministration of ozanimod with strong CYP2C8 inducers is not recommended.

• pimavanserin

  Monitor Closely (1)ozanimod and pimavanserin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• pimozide

  Monitor Closely (1)ozanimod and pimozide both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• pitolisant

  Monitor Closely (1)ozanimod and pitolisant both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• pneumococcal vaccine 13-valent

  Minor (1)ozanimod decreases effects of pneumococcal vaccine 13-valent by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• pneumococcal vaccine heptavalent

  Minor (1)ozanimod decreases effects of pneumococcal vaccine heptavalent by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• pneumococcal vaccine polyvalent

  Minor (1)ozanimod decreases effects of pneumococcal vaccine polyvalent by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• poliovirus vaccine inactivated

  Minor (1)ozanimod decreases effects of poliovirus vaccine inactivated by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• poliovirus vaccine live oral trivalent

  Serious - Use Alternative (1)ozanimod decreases effects of poliovirus vaccine live oral trivalent by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• ponatinib

  Serious - Use Alternative (1)ponatinib increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• ponesimod

  Monitor Closely (1)ponesimod and ozanimod both increase immunosuppressive effects; risk of infection. Use Caution/Monitor. Caution if coadministered because of additive immunosuppressive effects during such therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs to avoid unintended additive immunosuppressive effects.Serious - Use Alternative (1)ponesimod, ozanimod. Either increases effects of the other by pharmacodynamic synergism. Avoid or Use Alternate Drug. Consult cardiologist if considering treatment. Coadministration of ponesimod with drugs that decrease HR may have additive effects on decreasing HR and should generally not be initiated in these patients.

• posaconazole

  Monitor Closely (1)ozanimod and posaconazole both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• prednisolone

  Monitor Closely (1)ozanimod, prednisolone. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• prednisone

  Monitor Closely (1)ozanimod, prednisone. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• primaquine

  Serious - Use Alternative (1)primaquine and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• primidone

  Serious - Use Alternative (1)primidone will decrease the level or effect of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Coadministration of ozanimod (a CYP2C8 substrate) with strong CYP2C8 inducers decreases the exposure of the active metabolites (CC112273 and CC1084037) of ozanimod, which may decrease the effiicacy of ozanimod. Therefore, coadministration of ozanimod with strong CYP2C8 inducers is not recommended.

• procainamide

  Monitor Closely (1)ozanimod and procainamide both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• procarbazine

  Contraindicated (1)procarbazine and ozanimod both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Contraindicated. Coadministration of ozanimod with MAO-B inhibitors may decrease exposure of the active metabolites of ozanimod, which may inhibit MAO. The potential for a clinical interaction with MAO inhibitors has not been studied; however, the increased risk of nonselective MAO inhibition may lead to a hypertensive crisis. Allow at least 14 days to elapse between discontinuing ozanimod and initiating with MAO inhibitors.

• propafenone

  Monitor Closely (1)ozanimod and propafenone both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• protriptyline

  Monitor Closely (1)ozanimod and protriptyline both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.Serious - Use Alternative (1)ozanimod increases toxicity of protriptyline by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• pseudoephedrine

  Serious - Use Alternative (1)ozanimod increases toxicity of pseudoephedrine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• quetiapine

  Monitor Closely (1)ozanimod and quetiapine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• quinidine

  Monitor Closely (1)ozanimod and quinidine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• quinine

  Monitor Closely (1)ozanimod and quinine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• rabies vaccine

  Minor (1)ozanimod decreases effects of rabies vaccine by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• rabies vaccine chick embryo cell derived

  Minor (1)ozanimod decreases effects of rabies vaccine chick embryo cell derived by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• ranolazine

  Monitor Closely (1)ozanimod and ranolazine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• rasagiline

  Contraindicated (1)rasagiline and ozanimod both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Contraindicated. Coadministration of ozanimod with MAO-B inhibitors may decrease exposure of the active metabolites of ozanimod, which may inhibit MAO. The potential for a clinical interaction with MAO inhibitors has not been studied; however, the increased risk of nonselective MAO inhibition may lead to a hypertensive crisis. Allow at least 14 days to elapse between discontinuing ozanimod and initiating with MAO inhibitors.

• regorafenib

  Serious - Use Alternative (1)regorafenib increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• remestemcel-L

  Monitor Closely (1)ozanimod, remestemcel-L. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• remifentanil

  Serious - Use Alternative (1)ozanimod and remifentanil both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• ribociclib

  Monitor Closely (1)ozanimod and ribociclib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• rifampin

  Serious - Use Alternative (1)rifampin will decrease the level or effect of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Coadministration of ozanimod (a CYP2C8 substrate) with strong CYP2C8 inducers decreases the exposure of the active metabolites (CC112273 and CC1084037) of ozanimod, which may decrease the effiicacy of ozanimod. Therefore, coadministration of ozanimod with strong CYP2C8 inducers is not recommended.

• rifapentine

  Serious - Use Alternative (1)rifapentine will decrease the level or effect of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Coadministration of ozanimod (a CYP2C8 substrate) with strong CYP2C8 inducers decreases the exposure of the active metabolites (CC112273 and CC1084037) of ozanimod, which may decrease the effiicacy of ozanimod. Therefore, coadministration of ozanimod with strong CYP2C8 inducers is not recommended.

• rilonacept

  Monitor Closely (1)ozanimod, rilonacept. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• rilpivirine

  Monitor Closely (1)ozanimod and rilpivirine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• risperidone

  Monitor Closely (1)ozanimod and risperidone both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• ritonavir

  Monitor Closely (2)ritonavir will increase the level or effect of ozanimod by Other (see comment). Modify Therapy/Monitor Closely. Coadministration of ozanimod (a CYP2C8 substrate) with strong CYP2C8 inhibitors increases the exposure of the active metabolites (CC112273 and CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. Therefore, coadministration of ozanimod with strong CYP2C8 inhibitors is not recommended.
  
  ozanimod and ritonavir both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• rizatriptan

  Serious - Use Alternative (1)ozanimod increases toxicity of rizatriptan by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• rolapitant

  Serious - Use Alternative (1)rolapitant increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• romidepsin

  Monitor Closely (1)ozanimod and romidepsin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• rotavirus oral vaccine, live

  Serious - Use Alternative (1)ozanimod decreases effects of rotavirus oral vaccine, live by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• rubella vaccine

  Serious - Use Alternative (1)ozanimod decreases effects of rubella vaccine by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• safinamide

  Contraindicated (1)safinamide and ozanimod both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Contraindicated. Coadministration of ozanimod with MAO-B inhibitors may decrease exposure of the active metabolites of ozanimod, which may inhibit MAO. The potential for a clinical interaction with MAO inhibitors has not been studied; however, the increased risk of nonselective MAO inhibition may lead to a hypertensive crisis. Allow at least 14 days to elapse between discontinuing ozanimod and initiating with MAO inhibitors.Serious - Use Alternative (1)safinamide increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• saquinavir

  Monitor Closely (1)ozanimod and saquinavir both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• secobarbital

  Serious - Use Alternative (1)secobarbital will decrease the level or effect of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Coadministration of ozanimod (a CYP2C8 substrate) with strong CYP2C8 inducers decreases the exposure of the active metabolites (CC112273 and CC1084037) of ozanimod, which may decrease the effiicacy of ozanimod. Therefore, coadministration of ozanimod with strong CYP2C8 inducers is not recommended.

• selegiline

  Contraindicated (1)selegiline and ozanimod both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Contraindicated. Coadministration of ozanimod with MAO-B inhibitors may decrease exposure of the active metabolites of ozanimod, which may inhibit MAO. The potential for a clinical interaction with MAO inhibitors has not been studied; however, the increased risk of nonselective MAO inhibition may lead to a hypertensive crisis. Allow at least 14 days to elapse between discontinuing ozanimod and initiating with MAO inhibitors.

• selegiline transdermal

  Contraindicated (1)selegiline transdermal and ozanimod both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Contraindicated. Coadministration of ozanimod with MAO-B inhibitors may decrease exposure of the active metabolites of ozanimod, which may inhibit MAO. The potential for a clinical interaction with MAO inhibitors has not been studied; however, the increased risk of nonselective MAO inhibition may lead to a hypertensive crisis. Allow at least 14 days to elapse between discontinuing ozanimod and initiating with MAO inhibitors.

• serdexmethylphenidate/dexmethylphenidate

  Serious - Use Alternative (1)ozanimod increases toxicity of serdexmethylphenidate/dexmethylphenidate by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• sertraline

  Monitor Closely (1)ozanimod and sertraline both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.Serious - Use Alternative (1)ozanimod increases toxicity of sertraline by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• sevoflurane

  Serious - Use Alternative (1)sevoflurane and ozanimod both increase QTc interval. Avoid or Use Alternate Drug.

• siltuximab

  Monitor Closely (1)ozanimod, siltuximab. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• siponimod

  Monitor Closely (1)ozanimod, siponimod. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• sirolimus

  Monitor Closely (1)ozanimod, sirolimus. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• sirolimus intravitreal

  Monitor Closely (1)ozanimod, sirolimus intravitreal. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• smallpox (vaccinia) and monkeypox vaccine, live, nonreplicating

  Serious - Use Alternative (2)ozanimod decreases effects of smallpox (vaccinia) vaccine, attenuated by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .
  
  ozanimod decreases effects of smallpox (vaccinia) vaccine, attenuated by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• smallpox (vaccinia) vaccine, live

  Serious - Use Alternative (1)ozanimod decreases effects of smallpox (vaccinia) vaccine, live by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• solifenacin

  Monitor Closely (1)ozanimod and solifenacin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• sorafenib

  Monitor Closely (1)ozanimod and sorafenib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• sotalol

  Monitor Closely (1)ozanimod and sotalol both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• St John's Wort

  Serious - Use Alternative (1)ozanimod increases toxicity of St John's Wort by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• stiripentol

  Serious - Use Alternative (1)stiripentol increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• sufentanil

  Serious - Use Alternative (1)ozanimod and sufentanil both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• sufentanil SL

  Serious - Use Alternative (1)ozanimod and sufentanil SL both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• sumatriptan

  Serious - Use Alternative (1)ozanimod increases toxicity of sumatriptan by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• sumatriptan intranasal

  Serious - Use Alternative (1)ozanimod increases toxicity of sumatriptan intranasal by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• sumatriptan transdermal

  Serious - Use Alternative (1)ozanimod increases toxicity of sumatriptan transdermal by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• sunitinib

  Monitor Closely (1)ozanimod and sunitinib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.Serious - Use Alternative (1)sunitinib increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• tacrolimus

  Monitor Closely (2)ozanimod, tacrolimus. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.
  
  ozanimod and tacrolimus both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• tafamidis

  Serious - Use Alternative (1)tafamidis increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• tafamidis meglumine

  Serious - Use Alternative (1)tafamidis meglumine increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• tapentadol

  Serious - Use Alternative (1)ozanimod increases toxicity of tapentadol by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• telavancin

  Monitor Closely (1)ozanimod and telavancin both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• tetanus toxoid adsorbed or fluid

  Minor (1)ozanimod decreases effects of tetanus toxoid adsorbed or fluid by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.

• tetrabenazine

  Monitor Closely (1)ozanimod and tetrabenazine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• thioridazine

  Monitor Closely (1)ozanimod and thioridazine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• thiothixene

  Monitor Closely (1)ozanimod and thiothixene both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• toremifene

  Monitor Closely (1)ozanimod and toremifene both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• tramadol

  Serious - Use Alternative (1)ozanimod increases toxicity of tramadol by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• tranylcypromine

  Contraindicated (1)tranylcypromine and ozanimod both increase sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Contraindicated. Coadministration of ozanimod with MAO-B inhibitors may decrease exposure of the active metabolites of ozanimod, which may inhibit MAO. The potential for a clinical interaction with MAO inhibitors has not been studied; however, the increased risk of nonselective MAO inhibition may lead to a hypertensive crisis. Allow at least 14 days to elapse between discontinuing ozanimod and initiating with MAO inhibitors.

• trazodone

  Serious - Use Alternative (1)ozanimod increases levels of trazodone by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• triamcinolone acetonide extended-release injectable suspension

  Monitor Closely (1)ozanimod, triamcinolone acetonide extended-release injectable suspension. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• triamcinolone acetonide injectable suspension

  Monitor Closely (1)ozanimod, triamcinolone acetonide injectable suspension. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• trimipramine

  Monitor Closely (1)ozanimod and trimipramine both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.Serious - Use Alternative (1)ozanimod increases toxicity of trimipramine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• typhoid polysaccharide vaccine

  Serious - Use Alternative (1)ozanimod decreases effects of typhoid polysaccharide vaccine by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• typhoid vaccine live

  Serious - Use Alternative (1)ozanimod decreases effects of typhoid vaccine live by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• upadacitinib

  Contraindicated (1)ozanimod, upadacitinib. Either increases effects of the other by immunosuppressive effects; risk of infection. Contraindicated.

• valbenazine

  Monitor Closely (1)valbenazine and ozanimod both increase QTc interval. Use Caution/Monitor.

• vandetanib

  Monitor Closely (1)ozanimod and vandetanib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.Serious - Use Alternative (1)vandetanib increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• vardenafil

  Monitor Closely (1)ozanimod and vardenafil both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• varicella virus vaccine live

  Serious - Use Alternative (1)ozanimod decreases effects of varicella virus vaccine live by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• vedolizumab

  Monitor Closely (1)ozanimod, vedolizumab. Either increases effects of the other by immunosuppressive effects; risk of infection. Use Caution/Monitor. Coadministration with immunosuppressive therapies may increase the risk of additive immune effects during therapy and in the weeks following administration. When switching from drugs with prolonged immune effects, consider the half-life and mode of action of these drugs in order to avoid unintended additive immunosuppressive effects.

• velpatasvir

  Serious - Use Alternative (1)velpatasvir increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• vemurafenib

  Monitor Closely (1)ozanimod and vemurafenib both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.Serious - Use Alternative (1)vemurafenib increases toxicity of ozanimod by Other (see comment). Avoid or Use Alternate Drug. Comment: Coadministration of ozanimod (a BCRP substrate) with BCRP inhibitors increases the exposure of the minor (RP101988, RP101075) and major active metabolites (CC112273, CC1084037) of ozanimod, which may increase the risk of ozanimod adverse reactions. .

• venlafaxine

  Serious - Use Alternative (1)ozanimod increases toxicity of venlafaxine by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• verapamil

  Serious - Use Alternative (1)ozanimod increases toxicity of verapamil by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• vilanterol/fluticasone furoate inhaled

  Monitor Closely (1)ozanimod and vilanterol/fluticasone furoate inhaled both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• vilazodone

  Serious - Use Alternative (1)ozanimod increases toxicity of vilazodone by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• voclosporin

  Monitor Closely (1)voclosporin, ozanimod. Either increases effects of the other by QTc interval. Use Caution/Monitor.

• voriconazole

  Monitor Closely (1)ozanimod and voriconazole both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• vorinostat

  Monitor Closely (1)ozanimod and vorinostat both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• yellow fever vaccine

  Serious - Use Alternative (1)ozanimod decreases effects of yellow fever vaccine by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• ziprasidone

  Monitor Closely (1)ozanimod and ziprasidone both increase QTc interval. Modify Therapy/Monitor Closely. The potential additive effects on heart rate, treatment with ozanimod should generally not be initiated in patients who are concurrently treated with QT prolonging drugs with known arrhythmogenic properties.

• zolmitriptan

  Serious - Use Alternative (1)ozanimod increases toxicity of zolmitriptan by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• zolmitriptan transdermal

  Serious - Use Alternative (1)ozanimod increases toxicity of zolmitriptan transdermal by sympathetic (adrenergic) effects, including increased blood pressure and heart rate. Avoid or Use Alternate Drug. Because the active metabolite of ozanimod inhibits MAO-B in vitro, there is a potential for serious adverse reactions, including hypertensive crisis. Therefore, coadministration of ozanimod with drugs that can increase norepinephrine or serotonin is not recommended. Monitor for hypertension with concomitant use.

• zoster vaccine live

  Serious - Use Alternative (1)ozanimod decreases effects of zoster vaccine live by immunosuppressive effects; risk of infection. Avoid or Use Alternate Drug. Avoid use of live-attenuated vaccines with ozanimod during treatment and for up to 3 months after discontinuing ozanimod. .

• zoster vaccine recombinant

  Minor (1)ozanimod decreases effects of zoster vaccine recombinant by immunosuppressive effects; risk of infection. Minor/Significance Unknown. No clinical data are available on the efficacy and safety of vaccinations in patients taking ozanimod. Vaccinations may be less effective if coadministered with ozanimod.