aripiprazole (Rx)

Schizophrenia

Also see Administration

PO

• 10-15 mg/day PO initially; may increase after 2 weeks at each dose strength; not to exceed 30 mg/day PO when administered as tablet formulation; efficacy not significantly greater above 15 mg/day

Abilify Maintena

• Patients who have never taken aripiprazole

  • 400 mg IM once monthly initially
  • Establish tolerability with aripiprazole PO prior to initiating treatment with Abilify Maintena; may take up to ~ 2 weeks to fully assess tolerability
  • Continue aripiprazole PO (10-20 mg/day) or other antipsychotics PO in patients with known aripiprazole tolerance for 14 consecutive days after initial injection

• Patients stabilized or aripiprazole tolerant

  • 400 mg IM once monthly
  • Administer monthly dose no sooner than 26 days after previous injection (also see Dosage Modifications)
  • Consider dose reduction to 300 mg/month if adverse reaction occurs

Aristada

• Establish tolerability with PO aripiprazole before initiating Aristada; may take up to 2 weeks to fully assess tolerability
• Base initial Aristada dose on current aripiprazole PO dose; coadminister aripiprazole PO for 21 consecutive days
• 10 mg/day PO: 441 mg IM once monthly
• 15 mg/day PO: 662 mg IM once monthly or 882 mg IM q6wk or 1064 mg IM q2mo
• ≥20 mg/day PO: 882 mg IM once monthly
• Adjust dose and dosing interval as needed; take into consideration the pharmacokinetics and prolonged-release characteristics of Aristada In the event of early dosing, Aristada should not be given earlier than 14 days after the previous injection

Aristada Initio

• Indicated in combination with aripiprazole PO for the initiation of Aristada when used for the treatment of schizophrenia
• Used a single dose to initiate Aristada treatment or as a single dose to re-initiate Aristada treatment following a missed dose of Aristada
• Establish tolerability with aripiprazole PO prior to initiating treatment with Aristada Initio; may take up to ~ 2 weeks to fully assess tolerability
• After establishing tolerability with aripiprazole PO, administer the first Aristada IM injection (441 mg, 662 mg, 882 mg, or 1064 mg) in conjunction with both: One dose of Aristada Initio 675 mg IM and one dose of aripiprazole 30 mg PO
• Aristada Initio is only to be used as a single dose and is not for repeated dosing
• First Aristada extended-release IM injection may be administered on the same day as Aristada Initio or up to 10 days thereafter (Refer to Aristada for prescribing information)
• Also see Dosing Considerations

Bipolar Mania

PO

• Indicated for acute and maintenance treatment of manic or mixed episodes associated with bipolar I disorder, either as monotherapy or as adjunct to lithium or valproate
• Monotherapy: 15 mg/day PO initially; may be increased gradually; not to exceed 30 mg/day
• Adjunct to lithium or valproate: 10-15 mg/day PO initially; recommended daily dose is 15 mg/day; may be gradually increased; not to exceed 30 mg/day
• Continue stabilization dose for up to 6 weeks; treatment >6 weeks not studied

Abilify Maintena

• Patients who have never taken aripiprazole

  • 400 mg IM once monthly initially
  • Administer only by deep IM injection into deltoid or gluteal muscle by healthcare professional
  • Establish tolerability with aripiprazole PO prior to initiating treatment with Abilify Maintena; may take up to ~ 2 weeks to fully assess tolerability
  • Continue aripiprazole PO (10-20 mg/day) or other PO antipsychotics in patients with known aripiprazole tolerance for 14 consecutive days after initial injection

• Patients stabilized or aripiprazole tolerant

  • 400 mg IM once monthly
  • Administer monthly dose no sooner than 26 days after previous injection (also see Dosage Modifications)
  • Consider dose reduction to 300 mg/month if adverse reaction occurs

Major Depressive Disorder

2-5 mg/day PO initially; increased weekly PRN by ≤5 mg/day to dose range of 2-15 mg/day

Used adjunctively with other antidepressants

Dosage Modifications (Oral)

Poor metabolizers and drugs that affect cytochrome-P 450

• Known CYP2D6 poor metabolizers: Administer half of recommended dose
• Known CYP2D6 poor metabolizers taking concomitant strong
• CYP3A4 inhibitors: Administer a quarter of the recommended dose (ie, decrease dose by 75%)
• Strong CYP2D6 or CYP3A4 inhibitors: Administer half of recommended dose
• Strong CYP2D6 AND CYP3A4 inhibitors: Administer a quarter of the recommended dose (ie, decrease dose by 75%)
• Strong CYP3A4 inducers: double recommended dose over 1-2 weeks

Dosage Modifications (Abilify Maintena)

CYP2D6 poor metabolizers: 300 mg IM

CYP2D6 poor metabolizers taking concomitant CYP3A4 inhibitor: 200 mg IM

Patients taking 400 mg IM

• Strong CYP2D6 OR CYP3A4 inhibitors: 300 mg IM
• CYP2D6 AND CYP 3A4 inhibitors: 200 mg IM
• CYP3A4 inducers: Avoid use

Patients taking 300 mg IM

• Strong CYP2D6 OR CYP3A4 inhibitors: 200 mg IM
• CYP2D6 AND CYP3A4 inhibitors: 160 mg IM
• CYP3A4 inducers: Avoid use

Dosage Modifications (Aristada)

No dosage changes if CYP450 modulators are added for <2 wk

Strong CYP3A4 inhibitor for >2 wk

• Reduce the dose to the next lower strength No dosage adjustment necessary in patients taking 441 mg, if tolerated
• Poor CYP2D6 metabolizers: Reduce dose to 441 mg from 662 mg, 882 mg, or 1064 mg; no dosage adjustment necessary in patients taking 441 mg, if tolerated

Strong CYP2D6 inhibitor for >2 wk

• Reduce the dose to the next lower strength
• No dosage adjustment necessary in patients taking 441 mg, if tolerated
• Poor CYP2D6 metabolizers: No dose adjustment required

Both strong CYP3A4 and CYP2D6 inhibitors for >2 wk

• Avoid use for patients taking 662 mg, 882 mg, or 1064 mg
• No dosage adjustment necessary in patients taking 441 mg, if tolerated

CYP3A4 inducers for >2 wk

• No dose adjustment for 662 mg, 882 mg, or 1064 mg
• Increase the 441 mg dose to 662 mg

Dosage Modifications (Aristada Initio)

Only available at a single strength as a single-dose prefilled syringes, so no dosage adjustments are possible

CYP2D6 poor metabolizers, strong CYP3A4 inhibitors, and strong CYP3A4 inducers: Avoid use

Hepatic impairment

• Mild-to-severe (Child-Pugh score 5-15): No dosage adjustment necessary

Renal impairment

• Mild-to-severe (GFR 15-90 mL/min): No dosage adjustment necessary

Dosing Considerations

Aristada Initio

• Not interchangeable with Aristada due to differing pharmacokinetic profiles

Abilify MyCite indications

• Treatment of adults with schizophrenia
• Adjunctive treatment of adults with major depressive disorder Treatment of bipolar I disorder

• Treatment of bipolar I disorder

  • Acute treatment of adults with manic and mixed episodes as monotherapy and as adjunct to lithium or valproate
  • Maintenance treatment of adults as monotherapy and as adjunct to lithium or valproate

Abilify MyCite detection

• Most ingestions will be detected within 30 minutes, although it may take up to 2 hr for the smartphone app and web portal to detect the ingested tablet
• In some cases, the ingested tablet may not be detected
• If the tablet is not detected after ingestion, do not repeat the dose

N-Glycanase 1 Deficiency (Orphan)

Orphan designation for treatment of N-glycanase 1 (NGLY1) deficiency

Orphan sponsor

• Perlara PBC; 2625 Alcatraz Ave, #435; Berkeley, California 94705

Schizophrenia

Indicated for treatment of schizophrenia in adolescents aged13-17 years

<13 years: Safety and efficacy not established

13-17 years: 2 mg/day PO initially; increase to 5 mg/day after 2 days; may further increase to recommended dose of 10 mg/day after additional 2 days; subsequent doses may increase by 5 mg/day; maintenance: 10-30 mg/day

Bipolar Mania

Indicated for acute manic or mixed episodes, either as monotherapy or as adjunct to lithium or valproate

10-17 years: 2 mg/day PO initially; increased to 5 mg/day after 2 days; may further increase to recommended dosage of 10 mg/day after additional 2 days; subsequent doses may increase by 5 mg/day; maintenance: 10-30 mg/day

Autism

Indicated for irritability associated with autistic disorder

<6 years: Safety and efficacy not established

6-17 years: 2 mg/day PO initially; increase gradually at ≥1 week intervals to target dosage of 5 mg/day; may gradually be further increase PRN to 10 mg/day or higher; not to exceed 15 mg/day

Tourette Disorder

Indicated for treatment of Tourette disorder

<6 years: Safety and efficacy not established

6-18 years (<50 kg)

• Initiate at 2 mg/day PO with a target dose of 5 mg/day after 2 days
• The dose can be increased to 10 mg/day in patients who do not achieve optimal control of tics
• Dosage adjustments should occur gradually at intervals of no less than 1 week

6-18 years (≥50 kg)

• Initiate at 2 mg/day PO for 2 days, and then increase to 5 mg/day for 5 days, with a target dose of 10 mg/day on day 8
• The dose can be increased up to 20 mg/day for patients who do not achieve optimal control of tics
• Dosage adjustments should occur gradually in increments of 5 mg/day at intervals of no less than 1 week

Dosage Modifications (Oral)

Poor metabolizers and drugs that affect cytochrome-P 450

• Known CYP2D6 poor metabolizers: Administer half of recommended dose
• Known CYP2D6 poor metabolizers taking concomitant strong
• CYP3A4 inhibitors: Administer a quarter of the recommended dose (ie, decrease dose by 75%)
• Strong CYP2D6 or CYP3A4 inhibitors: Administer half of recommended dose
• Strong CYP2D6 AND CYP3A4 inhibitors: Administer a quarter of the recommended dose (ie, decrease dose by 75%)
• Strong CYP3A4 inducers: double recommended dose over 1-2 weeks

Contraindicated (4)

• amisulpride

  amisulpride, aripiprazole. Either increases toxicity of the other by Other (see comment). Contraindicated. Comment: Increases risk of neuroleptic malignant syndrome.

• cisapride

  aripiprazole and cisapride both increase QTc interval. Contraindicated.

• dronedarone

  aripiprazole and dronedarone both increase QTc interval. Contraindicated.

• thioridazine

  aripiprazole and thioridazine both increase QTc interval. Contraindicated.

Serious - Use Alternative (120)

• abametapir

  abametapir will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. For 2 weeks after abametapir application, avoid taking drugs that are CYP3A4 substrates. If not feasible, avoid use of abametapir.

• amiodarone

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

• amisulpride

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

• apalutamide

  apalutamide will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Coadministration of apalutamide, a strong CYP3A4 inducer, with drugs that are CYP3A4 substrates can result in lower exposure to these medications. Avoid or substitute another drug for these medications when possible. Evaluate for loss of therapeutic effect if medication must be coadministered. Adjust dose according to prescribing information if needed.

• apomorphine

  aripiprazole decreases effects of apomorphine by pharmacodynamic antagonism. Avoid or Use Alternate Drug.

• arsenic trioxide

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

• artemether/lumefantrine

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

• asenapine

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

• azithromycin

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

• bedaquiline

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

• benzhydrocodone/acetaminophen

  benzhydrocodone/acetaminophen, aripiprazole. Either increases toxicity of the other by pharmacodynamic synergism. Avoid or Use Alternate Drug. Profound sedation, respiratory depression, coma, and death may result if coadministered. Reserve concomitant prescribing of these drugs in patients for whom other treatment options are inadequate. Limit dosages and durations to the minimum required. Monitor closely for signs of respiratory depression and sedation.

• bromocriptine

  aripiprazole decreases effects of bromocriptine by pharmacodynamic antagonism. Avoid or Use Alternate Drug.

• buprenorphine

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

• cabergoline

  aripiprazole decreases effects of cabergoline by pharmacodynamic antagonism. Contraindicated.

• calcium/magnesium/potassium/sodium oxybates

  aripiprazole, calcium/magnesium/potassium/sodium oxybates. Either increases effects of the other by pharmacodynamic synergism. Avoid or Use Alternate Drug. Profound sedation, respiratory depression, coma, and death may result if coadministered. Reserve concomitant prescribing of these drugs in patients for whom other treatment options are inadequate. Limit dosages and durations to the minimum required. Monitor closely for signs of respiratory depression and sedation.

• carbamazepine

  carbamazepine will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. If carbamazepine is started in a patient already taking aripiprazole, the aripiprazole dose should be doubled; reduce aripiprazole dose if carbamazepine is discontinued

• chloramphenicol

  chloramphenicol will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.

• chloroquine

  chloroquine will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
  
  aripiprazole and chloroquine both increase QTc interval. Avoid or Use Alternate Drug.

• chlorpromazine

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

• cimetidine

  cimetidine will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.

• citalopram

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

• clarithromycin

  clarithromycin will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
  
  aripiprazole and clarithromycin both increase QTc interval. Avoid or Use Alternate Drug.

• clozapine

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

• crizotinib

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

• dacomitinib

  dacomitinib will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Avoid or Use Alternate Drug. Avoid use with CYP2D6 substrates where minimal increases in concentration of the CYP2D6 substrate may lead to serious or life-threatening toxicities.

• desflurane

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

• disopyramide

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

• dofetilide

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

• dopamine

  aripiprazole decreases effects of dopamine by pharmacodynamic antagonism. Contraindicated.

• droperidol

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

• eliglustat

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

• encorafenib

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

• entrectinib

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

• enzalutamide

  enzalutamide will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.

• eribulin

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

• erythromycin base

  erythromycin base will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
  
  aripiprazole and erythromycin base both increase QTc interval. Avoid or Use Alternate Drug.

• erythromycin ethylsuccinate

  erythromycin ethylsuccinate will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
  
  aripiprazole and erythromycin ethylsuccinate both increase QTc interval. Avoid or Use Alternate Drug.

• erythromycin lactobionate

  erythromycin lactobionate will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.

• erythromycin stearate

  erythromycin stearate will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.

• fexinidazole

  fexinidazole and aripiprazole both increase QTc interval. Avoid or Use Alternate Drug. Avoid coadministration of fexinidazole with drugs known to block potassium channels or prolong QT interval.
  
  fexinidazole will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Fexinidazole inhibits CYP3A4. Coadministration may increase risk for adverse effects of CYP3A4 substrates.

• flecainide

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

• fluconazole

  aripiprazole and fluconazole both increase QTc interval. Contraindicated.

• fluoxetine

  fluoxetine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Avoid or Use Alternate Drug.
  
  aripiprazole and fluoxetine both increase QTc interval. Avoid or Use Alternate Drug.

• fluphenazine

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

• foscarnet

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

• givosiran

  givosiran will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Avoid or Use Alternate Drug. Avoid coadministration of sensitive CYP2D6 substrates with givosiran. If unavoidable, decrease the CYP2D6 substrate dosage in accordance with approved product labeling.

• glasdegib

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

• hydrocodone

  hydrocodone, aripiprazole. Either increases toxicity of the other by pharmacodynamic synergism. Avoid or Use Alternate Drug. Profound sedation, respiratory depression, coma, and death may result if coadministered. Reserve concomitant prescribing of these drugs in patients for whom other treatment options are inadequate. Limit dosages and durations to the minimum required. Monitor closely for signs of respiratory depression and sedation.

• hydroxychloroquine sulfate

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

• ibutilide

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

• idelalisib

  idelalisib will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Idelalisib is a strong CYP3A inhibitor; avoid coadministration with sensitive CYP3A substrates

• iloperidone

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

• inotuzumab

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

• isoflurane

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

• itraconazole

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

• ivosidenib

  ivosidenib will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Avoid coadministration of sensitive CYP3A4 substrates with ivosidenib or replace with alternate therapies. If coadministration is unavoidable, monitor patients for loss of therapeutic effect of these drugs.
  
  aripiprazole and ivosidenib both decrease QTc interval. Avoid or Use Alternate Drug.

• lefamulin

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

• lenvatinib

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

• levodopa

  aripiprazole decreases effects of levodopa by pharmacodynamic antagonism. Avoid or Use Alternate Drug.

• levodopa inhaled

  aripiprazole decreases effects of levodopa inhaled by pharmacodynamic antagonism. Avoid or Use Alternate Drug. Atypical (2nd generation) antipsychotics inhibit dopamine D2 receptors in varying degrees (clozapine and quetiapine are lower risk). .

• lisuride

  aripiprazole decreases effects of lisuride by pharmacodynamic antagonism. Contraindicated.

• lonafarnib

  lonafarnib will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Avoid coadministration with sensitive CYP3A substrates. If coadministration unavoidable, monitor for adverse reactions and reduce CYP3A substrate dose in accordance with product labeling.

• lopinavir

  lopinavir will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
  
  aripiprazole and lopinavir both increase QTc interval. Avoid or Use Alternate Drug.

• maprotiline

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

• mefloquine

  mefloquine increases toxicity of aripiprazole by QTc interval. Avoid or Use Alternate Drug. Mefloquine may enhance the QTc prolonging effect of high risk QTc prolonging agents.

• methadone

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

• methyldopa

  aripiprazole decreases effects of methyldopa by pharmacodynamic antagonism. Contraindicated.

• metoclopramide intranasal

  aripiprazole, metoclopramide intranasal. Either increases effects of the other by Other (see comment). Avoid or Use Alternate Drug. Comment: Avoid use of metoclopramide intranasal or interacting drug, depending on importance of drug to patient.
  
  aripiprazole increases toxicity of metoclopramide intranasal by pharmacodynamic synergism. Avoid or Use Alternate Drug. Potential for additive effects, including increased frequency and severity of tardive dyskinesia, other extrapyramidal symptoms, and neuroleptic malignant syndrome.

• midostaurin

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

• mifepristone

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

• moxifloxacin

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

• nefazodone

  nefazodone will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.

• nilotinib

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

• ondansetron

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

• osimertinib

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

• oxaliplatin

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

• ozanimod

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

• paliperidone

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

• panobinostat

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

• paroxetine

  paroxetine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Avoid or Use Alternate Drug.

• pazopanib

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

• pentamidine

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

• perphenazine

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

• pimavanserin

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

• pimozide

  aripiprazole and pimozide both increase QTc interval. Contraindicated.

• pitolisant

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

• ponesimod

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

• posaconazole

  aripiprazole and posaconazole both increase QTc interval. Contraindicated.

• pramipexole

  aripiprazole decreases effects of pramipexole by pharmacodynamic antagonism. Contraindicated.

• procainamide

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

• propafenone

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

• quetiapine

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

• quinidine

  aripiprazole and quinidine both increase QTc interval. Contraindicated.

• quinine

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

• ranolazine

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

• ribociclib

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

• rifabutin

  rifabutin will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.

• rifampin

  rifampin will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.

• ropinirole

  aripiprazole decreases effects of ropinirole by pharmacodynamic antagonism. Contraindicated.

• safinamide

  aripiprazole decreases effects of safinamide by pharmacodynamic antagonism. Avoid or Use Alternate Drug. Dopamine antagonists may decrease safinamide effects and exacerbate Parkinson disease symptoms.

• saquinavir

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

• selinexor

  selinexor, aripiprazole. unspecified interaction mechanism. Avoid or Use Alternate Drug. Patients treated with selinexor may experience neurological toxicities. Avoid taking selinexor with other medications that may cause dizziness or confusion.

• selpercatinib

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

• siponimod

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

• sodium oxybate

  aripiprazole, sodium oxybate. Either increases effects of the other by pharmacodynamic synergism. Avoid or Use Alternate Drug. Profound sedation, respiratory depression, coma, and death may result if coadministered. Reserve concomitant prescribing of these drugs in patients for whom other treatment options are inadequate. Limit dosages and durations to the minimum required. Monitor closely for signs of respiratory depression and sedation.

• sorafenib

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

• sotalol

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

• St John's Wort

  St John's Wort will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.

• sufentanil SL

  sufentanil SL, aripiprazole. Either increases toxicity of the other by pharmacodynamic synergism. Avoid or Use Alternate Drug. Coadministration may result in hypotension, profound sedation, respiratory depression, coma, and death. Reserve concomitant prescribing of these drugs in patients for whom other treatment options are inadequate. Limit dosages and durations to the minimum required. Monitor closely for signs of respiratory depression and sedation.

• tetrabenazine

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

• thiothixene

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

• tipranavir

  tipranavir will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.

• toremifene

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

• trazodone

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

• vandetanib

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

• vemurafenib

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

• voriconazole

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

• vorinostat

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

• voxelotor

  voxelotor will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Voxelotor increases systemic exposure of sensitive CYP3A4 substrates. Avoid coadministration with sensitive CYP3A4 substrates with a narrow therapeutic index. Consider dose reduction of the sensitive CYP3A4 substrate(s) if unable to avoid.

• ziprasidone

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

Monitor Closely (396)

• abiraterone

  abiraterone increases levels of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor. Avoid coadministration of abiraterone with substrates of CYP2D6. If alternative therapy cannot be used, exercise caution and consider a dose reduction of the CYP2D6 substrate.

• acarbose

  aripiprazole, acarbose. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• aclidinium

  aclidinium decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of aclidinium by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• albiglutide

  aripiprazole, albiglutide. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• albuterol

  aripiprazole increases and albuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• alfentanil

  alfentanil and aripiprazole both increase sedation. Use Caution/Monitor.

• alfuzosin

  aripiprazole and alfuzosin both increase QTc interval. Use Caution/Monitor.

• almotriptan

  almotriptan, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• alprazolam

  alprazolam and aripiprazole both increase sedation. Use Caution/Monitor.

• amifostine

  amifostine, aripiprazole. Either increases effects of the other by anti-hypertensive channel blocking. Use Caution/Monitor. Due to its alpha adrenergic antagonism, atypical antipsychotic agents has the potential to enhance the effect of certain antihypertensive agents. Monitor blood pressure and adjust dose accordingly.

• amitriptyline

  aripiprazole and amitriptyline both increase sedation. Use Caution/Monitor.
  
  aripiprazole and amitriptyline both increase QTc interval. Use Caution/Monitor.

• amobarbital

  amobarbital and aripiprazole both increase sedation. Use Caution/Monitor.

• amoxapine

  aripiprazole and amoxapine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Modify Therapy/Monitor Closely.
  
  aripiprazole and amoxapine both increase sedation. Use Caution/Monitor.
  
  aripiprazole and amoxapine both increase QTc interval. Use Caution/Monitor.

• anagrelide

  aripiprazole and anagrelide both increase QTc interval. Use Caution/Monitor.

• anticholinergic/sedative combos

  anticholinergic/sedative combos decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  anticholinergic/sedative combos decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of anticholinergic/sedative combos by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• apomorphine

  aripiprazole and apomorphine both increase sedation. Use Caution/Monitor.
  
  aripiprazole and apomorphine both increase QTc interval. Use Caution/Monitor.

• aprepitant

  aprepitant will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• arformoterol

  aripiprazole increases and arformoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.
  
  aripiprazole and arformoterol both increase QTc interval. Use Caution/Monitor.

• armodafinil

  armodafinil will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  aripiprazole increases and armodafinil decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• artemether/lumefantrine

  artemether/lumefantrine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor.
  
  artemether/lumefantrine will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• atazanavir

  atazanavir will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• atracurium

  atracurium decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  atracurium decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of atracurium by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• atropine

  atropine decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  atropine decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of atropine by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• atropine IV/IM

  aripiprazole increases effects of atropine IV/IM by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.
  
  atropine IV/IM decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  atropine IV/IM decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.

• azelastine

  azelastine and aripiprazole both increase sedation. Use Caution/Monitor.

• baclofen

  baclofen and aripiprazole both increase sedation. Use Caution/Monitor.

• belladonna alkaloids

  belladonna alkaloids decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  belladonna alkaloids decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of belladonna alkaloids by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• belladonna and opium

  belladonna and opium and aripiprazole both increase sedation. Use Caution/Monitor.
  
  belladonna and opium decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  belladonna and opium decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of belladonna and opium by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• belzutifan

  belzutifan will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. If unable to avoid coadministration of belzutifan with sensitive CYP3A4 substrates, consider increasing the sensitive CYP3A4 substrate dose in accordance with its prescribing information.

• benazepril

  aripiprazole, benazepril. Either increases effects of the other by pharmacodynamic synergism. Use Caution/Monitor. Enhanced hypotensive effects.

• benperidol

  aripiprazole and benperidol both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and benperidol both increase sedation. Use Caution/Monitor.

• benzphetamine

  aripiprazole increases and benzphetamine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• bosentan

  bosentan will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• brexanolone

  brexanolone, aripiprazole. Either increases toxicity of the other by sedation. Use Caution/Monitor.

• brompheniramine

  brompheniramine and aripiprazole both increase sedation. Use Caution/Monitor.

• budesonide

  budesonide will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• buprenorphine

  buprenorphine and aripiprazole both increase sedation. Use Caution/Monitor.

• buprenorphine buccal

  buprenorphine buccal and aripiprazole both increase sedation. Use Caution/Monitor.

• buprenorphine, long-acting injection

  aripiprazole increases toxicity of buprenorphine, long-acting injection by pharmacodynamic synergism. Modify Therapy/Monitor Closely. Coadministration of buprenorphine and benzodiazepines or other CNS depressants increases risk of adverse reactions including overdose, respiratory depression, and death. Cessation of benzodiazepines or other CNS depressants is preferred in most cases. In some cases, monitoring at a higher level of care for tapering CNS depressants may be appropriate. In others, gradually tapering a patient off of a prescribed benzodiazepine or other CNS depressant or decreasing to the lowest effective dose may be appropriate.

• bupropion

  bupropion will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor.

• butabarbital

  butabarbital will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  butabarbital and aripiprazole both increase sedation. Use Caution/Monitor.

• butalbital

  butalbital will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  butalbital and aripiprazole both increase sedation. Use Caution/Monitor.

• butorphanol

  butorphanol and aripiprazole both increase sedation. Use Caution/Monitor.

• caffeine

  aripiprazole increases and caffeine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• captopril

  aripiprazole, captopril. Either increases effects of the other by pharmacodynamic synergism. Use Caution/Monitor. Both drugs lower blood pressure. Monitor blood pressure.

• carbinoxamine

  carbinoxamine and aripiprazole both increase sedation. Use Caution/Monitor.

• carisoprodol

  carisoprodol and aripiprazole both increase sedation. Use Caution/Monitor.

• cenobamate

  cenobamate will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Increase dose of CYP3A4 substrate, as needed, when coadministered with cenobamate.
  
  cenobamate, aripiprazole. Either increases effects of the other by sedation. Use Caution/Monitor.

• chloral hydrate

  chloral hydrate and aripiprazole both increase sedation. Use Caution/Monitor.

• chlordiazepoxide

  chlordiazepoxide and aripiprazole both increase sedation. Use Caution/Monitor.

• chlorpheniramine

  chlorpheniramine and aripiprazole both increase sedation. Use Caution/Monitor.

• chlorpromazine

  aripiprazole and chlorpromazine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and chlorpromazine both increase sedation. Use Caution/Monitor.

• chlorpropamide

  aripiprazole, chlorpropamide. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• chlorzoxazone

  chlorzoxazone and aripiprazole both increase sedation. Use Caution/Monitor.

• cinnarizine

  cinnarizine and aripiprazole both increase sedation. Use Caution/Monitor.

• ciprofloxacin

  aripiprazole and ciprofloxacin both increase QTc interval. Use Caution/Monitor.

• cisatracurium

  cisatracurium decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  cisatracurium decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of cisatracurium by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• clemastine

  clemastine and aripiprazole both increase sedation. Use Caution/Monitor.

• clobazam

  clobazam will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor. Lower doses of drugs metabolized by CYP2D6 may be required when used concomitantly.
  
  aripiprazole, clobazam. Other (see comment). Use Caution/Monitor. Comment: Concomitant administration can increase the potential for CNS effects (e.g., increased sedation or respiratory depression).

• clomipramine

  aripiprazole and clomipramine both increase sedation. Use Caution/Monitor.
  
  aripiprazole and clomipramine both increase QTc interval. Use Caution/Monitor.

• clonazepam

  clonazepam and aripiprazole both increase sedation. Use Caution/Monitor.

• clonidine

  clonidine, aripiprazole. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Additive hypotensive effects; potential delirium.

• clorazepate

  clorazepate and aripiprazole both increase sedation. Use Caution/Monitor.

• clozapine

  aripiprazole and clozapine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and clozapine both increase sedation. Use Caution/Monitor.

• cobicistat

  cobicistat will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Reduce aripiprazole dose by 25% and by approximately 50% if administered with CYP3A4 inhibitor and CYP206 inhibitor

• codeine

  codeine and aripiprazole both increase sedation. Use Caution/Monitor.

• conivaptan

  conivaptan will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• cortisone

  cortisone will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• crizotinib

  crizotinib increases levels of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Dose reduction may be needed for coadministered drugs that are predominantly metabolized by CYP3A.

• crofelemer

  crofelemer increases levels of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Crofelemer has the potential to inhibit CYP3A4 at concentrations expected in the gut; unlikely to inhibit systemically because minimally absorbed.

• cyclizine

  cyclizine and aripiprazole both increase sedation. Use Caution/Monitor.
  
  cyclizine decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  cyclizine decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of cyclizine by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• cyclobenzaprine

  cyclobenzaprine and aripiprazole both increase sedation. Use Caution/Monitor.
  
  cyclobenzaprine decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  aripiprazole increases effects of cyclobenzaprine by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• cyclosporine

  cyclosporine will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• cyproheptadine

  cyproheptadine and aripiprazole both increase sedation. Use Caution/Monitor.

• dabrafenib

  dabrafenib will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely.

• dantrolene

  dantrolene and aripiprazole both increase sedation. Use Caution/Monitor.

• daridorexant

  aripiprazole and daridorexant both increase sedation. Modify Therapy/Monitor Closely. Coadministration increases risk of CNS depression, which can lead to additive impairment of psychomotor performance and cause daytime impairment.

• darifenacin

  darifenacin will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  darifenacin decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  darifenacin decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of darifenacin by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• darunavir

  darunavir will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• dasatinib

  dasatinib will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  aripiprazole and dasatinib both increase QTc interval. Use Caution/Monitor.

• deferasirox

  deferasirox will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• degarelix

  aripiprazole and degarelix both increase QTc interval. Use Caution/Monitor.

• desipramine

  aripiprazole and desipramine both increase sedation. Use Caution/Monitor.
  
  aripiprazole and desipramine both increase QTc interval. Use Caution/Monitor.

• desvenlafaxine

  desvenlafaxine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor. Desvenlafaxine inhibits CYP2D6; with higher desvenlafaxine doses (ie, 400 mg) decrease the CYP2D6 substrate dose by up to 50%; no dosage adjustment needed with desvenlafaxine doses <100 mg

• deutetrabenazine

  aripiprazole and deutetrabenazine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Modify Therapy/Monitor Closely. The risk for parkinsonism, neuroleptic malignant syndrome, and akathisia may be increased by concomitant use of deutetrabenazine and dopamine antagonists or antipsychotics.
  
  aripiprazole and deutetrabenazine both increase sedation. Use Caution/Monitor.
  
  aripiprazole and deutetrabenazine both increase QTc interval. Use Caution/Monitor.

• dexamethasone

  dexamethasone will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• dexchlorpheniramine

  dexchlorpheniramine and aripiprazole both increase sedation. Use Caution/Monitor.

• dexfenfluramine

  aripiprazole increases and dexfenfluramine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• dexmedetomidine

  dexmedetomidine and aripiprazole both increase sedation. Use Caution/Monitor.

• dexmethylphenidate

  aripiprazole increases and dexmethylphenidate decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• dextroamphetamine

  aripiprazole increases and dextroamphetamine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• dextromethorphan

  dextromethorphan, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• dextromoramide

  dextromoramide and aripiprazole both increase sedation. Use Caution/Monitor.

• DHEA, herbal

  DHEA, herbal will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• diamorphine

  diamorphine and aripiprazole both increase sedation. Use Caution/Monitor.

• diazepam

  diazepam and aripiprazole both increase sedation. Use Caution/Monitor.

• dichlorphenamide

  dichlorphenamide and aripiprazole both decrease serum potassium. Use Caution/Monitor.

• dicyclomine

  dicyclomine decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  dicyclomine decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of dicyclomine by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• diethylpropion

  aripiprazole increases and diethylpropion decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• difelikefalin

  difelikefalin and aripiprazole both increase sedation. Use Caution/Monitor.

• difenoxin hcl

  difenoxin hcl and aripiprazole both increase sedation. Use Caution/Monitor.

• dihydroergotamine

  dihydroergotamine, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• diltiazem

  diltiazem will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Closely monitor when aripiprazole is used with a moderate CYP3A4 inhibitor, due to potential risks for increased aripiprazole systemic exposure and effects. Refer to drug monograph for specific dosing modifications are dependent on indication, genotype, and drug formulation.

• dimenhydrinate

  dimenhydrinate and aripiprazole both increase sedation. Use Caution/Monitor.

• diphenhydramine

  diphenhydramine and aripiprazole both increase sedation. Use Caution/Monitor.
  
  diphenhydramine decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  diphenhydramine decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of diphenhydramine by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• diphenoxylate hcl

  diphenoxylate hcl and aripiprazole both increase sedation. Use Caution/Monitor.

• dipipanone

  dipipanone and aripiprazole both increase sedation. Use Caution/Monitor.

• dobutamine

  aripiprazole increases and dobutamine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• dolasetron

  aripiprazole and dolasetron both increase QTc interval. Use Caution/Monitor.

• donepezil

  donepezil and aripiprazole both increase QTc interval. Use Caution/Monitor.

• dopamine

  aripiprazole increases and dopamine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• dopexamine

  aripiprazole increases and dopexamine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• dosulepin

  aripiprazole and dosulepin both increase sedation. Use Caution/Monitor.

• doxepin

  aripiprazole and doxepin both increase sedation. Use Caution/Monitor.
  
  doxepin and aripiprazole both increase QTc interval. Use Caution/Monitor.

• doxylamine

  doxylamine and aripiprazole both increase sedation. Use Caution/Monitor.

• dronedarone

  dronedarone will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• droperidol

  aripiprazole and droperidol both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and droperidol both increase sedation. Use Caution/Monitor.

• duvelisib

  duvelisib will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. will increase the level or effect of

• efavirenz

  efavirenz will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  efavirenz and aripiprazole both increase QTc interval. Use Caution/Monitor.

• elagolix

  elagolix will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Elagolix is a weak-to-moderate CYP3A4 inducer. Monitor CYP3A substrates if coadministered. Consider increasing CYP3A substrate dose if needed.

• eletriptan

  eletriptan, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• eliglustat

  eliglustat increases levels of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Modify Therapy/Monitor Closely. Monitor therapeutic drug concentrations, as indicated, or consider reducing the dosage of the concomitant drug and titrate to clinical effect.

• elvitegravir/cobicistat/emtricitabine/tenofovir DF

  elvitegravir/cobicistat/emtricitabine/tenofovir DF increases levels of aripiprazole by affecting hepatic enzyme CYP2E1 metabolism. Modify Therapy/Monitor Closely. Cobicistat is a CYP3A4 inhibitor; contraindicated with CYP3A4 substrates for which elevated plasma concentrations are associated with serious and/or life-threatening events.
  
  elvitegravir/cobicistat/emtricitabine/tenofovir DF increases levels of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Modify Therapy/Monitor Closely. Cobicistat is a CYP2D6 inhibitor; caution with CYP2D6 substrates for which elevated plasma concentrations are associated with serious and/or life-threatening events.

• encorafenib

  encorafenib, aripiprazole. affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Encorafenib both inhibits and induces CYP3A4 at clinically relevant plasma concentrations. Coadministration of encorafenib with sensitive CYP3A4 substrates may result in increased toxicity or decreased efficacy of these agents.

• ephedrine

  aripiprazole increases and ephedrine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• epinephrine

  aripiprazole increases and epinephrine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• epinephrine racemic

  aripiprazole increases and epinephrine racemic decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• ergoloid mesylates

  ergoloid mesylates, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• ergotamine

  ergotamine, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• erythromycin lactobionate

  aripiprazole and erythromycin lactobionate both increase QTc interval. Use Caution/Monitor.

• erythromycin stearate

  aripiprazole and erythromycin stearate both increase QTc interval. Use Caution/Monitor.

• escitalopram

  aripiprazole and escitalopram both increase QTc interval. Use Caution/Monitor.

• esketamine intranasal

  esketamine intranasal, aripiprazole. Either increases toxicity of the other by sedation. Modify Therapy/Monitor Closely.

• eslicarbazepine acetate

  eslicarbazepine acetate will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• estazolam

  estazolam and aripiprazole both increase sedation. Use Caution/Monitor.

• ethanol

  aripiprazole and ethanol both increase sedation. Use Caution/Monitor.

• etomidate

  etomidate and aripiprazole both increase sedation. Use Caution/Monitor.

• etravirine

  etravirine will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• exenatide injectable solution

  aripiprazole, exenatide injectable solution. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• exenatide injectable suspension

  aripiprazole, exenatide injectable suspension. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• fedratinib

  fedratinib will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Adjust dose of drugs that are CYP3A4 substrates as necessary.
  
  fedratinib will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor. Adjust dose of drugs that are CYP2D6 substrates as necessary.

• fenfluramine

  aripiprazole increases and fenfluramine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.
  
  aripiprazole decreases effects of fenfluramine by pharmacodynamic antagonism. Use Caution/Monitor. Potent serotonin receptor antagonists may decrease fenfluramine efficacy. If coadministered, monitor appropriately.

• fentanyl

  fentanyl, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• fesoterodine

  fesoterodine decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  fesoterodine decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of fesoterodine by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• fingolimod

  fingolimod and aripiprazole both increase QTc interval. Use Caution/Monitor.

• flavoxate

  flavoxate decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  flavoxate decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of flavoxate by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• flibanserin

  flibanserin, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• fluconazole

  fluconazole will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• fludrocortisone

  fludrocortisone will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• fluphenazine

  aripiprazole and fluphenazine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and fluphenazine both increase sedation. Use Caution/Monitor.

• flurazepam

  flurazepam and aripiprazole both increase sedation. Use Caution/Monitor.

• formoterol

  aripiprazole increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.
  
  aripiprazole and formoterol both increase QTc interval. Use Caution/Monitor.

• fosamprenavir

  fosamprenavir will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• fosphenytoin

  fosphenytoin will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• fostemsavir

  aripiprazole and fostemsavir both increase QTc interval. Use Caution/Monitor. QTc prolongation reported with higher than recommended doses of fostemsavir.

• frovatriptan

  frovatriptan, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• gemifloxacin

  aripiprazole and gemifloxacin both increase QTc interval. Use Caution/Monitor.

• gemtuzumab

  aripiprazole and gemtuzumab both increase QTc interval. Use Caution/Monitor.

• gilteritinib

  aripiprazole and gilteritinib both increase QTc interval. Use Caution/Monitor.

• glimepiride

  aripiprazole, glimepiride. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• glipizide

  aripiprazole, glipizide. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• glyburide

  aripiprazole, glyburide. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• glycopyrrolate

  aripiprazole increases effects of glycopyrrolate by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• glycopyrrolate inhaled

  glycopyrrolate inhaled decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  glycopyrrolate inhaled decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of glycopyrrolate inhaled by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• goserelin

  aripiprazole and goserelin both increase QTc interval. Use Caution/Monitor.

• granisetron

  aripiprazole and granisetron both increase QTc interval. Use Caution/Monitor.

• grapefruit

  grapefruit will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• griseofulvin

  griseofulvin will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• guanfacine

  guanfacine, aripiprazole. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Additive hypotensive effects; potential delirium.

• haloperidol

  aripiprazole and haloperidol both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and haloperidol both increase sedation. Use Caution/Monitor.
  
  aripiprazole and haloperidol both increase QTc interval. Use Caution/Monitor.

• henbane

  henbane decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  henbane decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of henbane by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• histrelin

  aripiprazole and histrelin both increase QTc interval. Use Caution/Monitor.

• homatropine

  homatropine decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  homatropine decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of homatropine by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• hydrocortisone

  hydrocortisone will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• hydromorphone

  hydromorphone and aripiprazole both increase sedation. Use Caution/Monitor.

• hydroxyzine

  hydroxyzine and aripiprazole both increase sedation. Use Caution/Monitor.
  
  aripiprazole and hydroxyzine both increase QTc interval. Use Caution/Monitor.

• hyoscyamine

  hyoscyamine decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  hyoscyamine decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of hyoscyamine by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• hyoscyamine spray

  aripiprazole increases effects of hyoscyamine spray by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.
  
  hyoscyamine spray decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  hyoscyamine spray decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.

• iloperidone

  aripiprazole and iloperidone both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and iloperidone both increase sedation. Use Caution/Monitor.
  
  iloperidone increases levels of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Iloperidone is a time-dependent CYP3A inhibitor and may lead to increased plasma levels of drugs predominantly eliminated by CYP3A4.

• imipramine

  aripiprazole and imipramine both increase sedation. Use Caution/Monitor.

• indacaterol, inhaled

  aripiprazole and indacaterol, inhaled both increase QTc interval. Use Caution/Monitor.

• indinavir

  indinavir will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• insulin aspart

  aripiprazole, insulin aspart. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• insulin degludec

  aripiprazole decreases effects of insulin degludec by Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; dose of antidiabetic agents may need adjustment and increased frequency of glucose monitoring may be required.

• insulin degludec/insulin aspart

  aripiprazole decreases effects of insulin degludec/insulin aspart by Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; dose of antidiabetic agents may need adjustment and increased frequency of glucose monitoring may be required.

• insulin detemir

  aripiprazole, insulin detemir. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• insulin glargine

  aripiprazole, insulin glargine. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• insulin glulisine

  aripiprazole, insulin glulisine. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• insulin inhaled

  aripiprazole decreases effects of insulin inhaled by Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; dose of antidiabetic agents may need adjustment and increased frequency of glucose monitoring may be required.

• insulin lispro

  aripiprazole, insulin lispro. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• insulin NPH

  aripiprazole, insulin NPH. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• insulin regular human

  aripiprazole, insulin regular human. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• ipratropium

  ipratropium decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  ipratropium decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of ipratropium by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• isoniazid

  isoniazid will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• isoproterenol

  aripiprazole increases and isoproterenol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• istradefylline

  istradefylline will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Istradefylline 40 mg/day increased peak levels and AUC of CYP3A4 substrates in clinical trials. This effect was not observed with istradefylline 20 mg/day. Consider dose reduction of sensitive CYP3A4 substrates.

• itraconazole

  itraconazole will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. For aripiprazole oral formulations other than the extended-release injectable: Reduce aripiprazole dose by 50% of the usual dose when initiating concomitant therapy with a strong CYP3A4 inhibitor, and further to 25% of the usual dose in patients who are also receiving strong CYP2D6 inhibitors (e.g., paroxetine, quinidine) or who are CYP2D6 poor metabolizers. Consider reducing apixaban dose to up to 75% when combining a strong CYP3A4 inhibitor with a less potent CYP2D6 inhibitor. For extended-release injectable aripiprazole: Please refer to prescribing information.

• ketoconazole

  ketoconazole will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Reduce aripiprazole oral dose by 50% of the usual dose when concomitantly using a strong CYP3A4 inhibitor, and further to 25% of the usual dose in patients who are also receiving strong CYP2D6 inhibitors (eg, paroxetine, quinidine) or who are CYP2D6 poor metabolizers. Consider dose reductions to 25% of the usual dose when combining a strong CYP3A4 inhibitor with a less potent CYP2D6 inhibitor initially and then adjusted to achieve a favorable clinical response.

• ketotifen, ophthalmic

  aripiprazole and ketotifen, ophthalmic both increase sedation. Use Caution/Monitor.

• lapatinib

  lapatinib will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  aripiprazole and lapatinib both increase QTc interval. Use Caution/Monitor.

• lasmiditan

  lasmiditan, aripiprazole. Either increases effects of the other by sedation. Use Caution/Monitor. Coadministration of lasmiditan and other CNS depressant drugs, including alcohol have not been evaluated in clinical studies. Lasmiditan may cause sedation, as well as other cognitive and/or neuropsychiatric adverse reactions.

• lemborexant

  lemborexant, aripiprazole. Either increases effects of the other by sedation. Modify Therapy/Monitor Closely. Dosage adjustment may be necessary if lemborexant is coadministered with other CNS depressants because of potentially additive effects.

• letermovir

  letermovir increases levels of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• leuprolide

  aripiprazole and leuprolide both increase QTc interval. Use Caution/Monitor.

• levalbuterol

  aripiprazole increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.
  
  aripiprazole and levalbuterol both increase QTc interval. Use Caution/Monitor.

• levofloxacin

  aripiprazole and levofloxacin both increase QTc interval. Use Caution/Monitor.

• levomilnacipran

  levomilnacipran, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• levorphanol

  levorphanol and aripiprazole both increase sedation. Use Caution/Monitor.

• linezolid

  linezolid, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• liraglutide

  aripiprazole, liraglutide. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• lisdexamfetamine

  aripiprazole increases and lisdexamfetamine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• lithium

  lithium, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).
  
  aripiprazole and lithium both increase QTc interval. Use Caution/Monitor.

• lofepramine

  aripiprazole and lofepramine both increase sedation. Use Caution/Monitor.

• lofexidine

  aripiprazole and lofexidine both increase sedation. Use Caution/Monitor.
  
  aripiprazole and lofexidine both increase QTc interval. Use Caution/Monitor.

• loperamide

  aripiprazole and loperamide both increase QTc interval. Use Caution/Monitor.

• loprazolam

  loprazolam and aripiprazole both increase sedation. Use Caution/Monitor.

• lorazepam

  lorazepam and aripiprazole both increase sedation. Use Caution/Monitor.

• lorcaserin

  lorcaserin will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor.
  
  lorcaserin, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• lorlatinib

  lorlatinib will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• lormetazepam

  lormetazepam and aripiprazole both increase sedation. Use Caution/Monitor.

• loxapine

  aripiprazole and loxapine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and loxapine both increase sedation. Use Caution/Monitor.

• loxapine inhaled

  aripiprazole and loxapine inhaled both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and loxapine inhaled both increase sedation. Use Caution/Monitor.

• lumefantrine

  lumefantrine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor.
  
  lumefantrine will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• lurasidone

  lurasidone, aripiprazole. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: Potential for increased CNS depressant effects when used concurrently; monitor for increased adverse effects and toxicity.

• maprotiline

  aripiprazole and maprotiline both increase sedation. Use Caution/Monitor.

• marijuana

  marijuana will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  aripiprazole and marijuana both increase sedation. Use Caution/Monitor.

• meclizine

  meclizine decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  meclizine decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of meclizine by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• melatonin

  aripiprazole and melatonin both increase sedation. Use Caution/Monitor.

• meperidine

  meperidine and aripiprazole both increase sedation. Use Caution/Monitor.
  
  meperidine, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• meprobamate

  aripiprazole and meprobamate both increase sedation. Use Caution/Monitor.

• metaproterenol

  aripiprazole increases and metaproterenol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• metaxalone

  metaxalone and aripiprazole both increase sedation. Use Caution/Monitor.

• metformin

  aripiprazole, metformin. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• methadone

  methadone and aripiprazole both increase sedation. Use Caution/Monitor.
  
  methadone, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• methamphetamine

  aripiprazole increases and methamphetamine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• methocarbamol

  methocarbamol and aripiprazole both increase sedation. Use Caution/Monitor.

• methscopolamine

  methscopolamine decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  methscopolamine decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of methscopolamine by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• methylenedioxymethamphetamine

  aripiprazole increases and methylenedioxymethamphetamine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• methylergonovine

  methylergonovine, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• methylphenidate

  aripiprazole increases toxicity of methylphenidate by pharmacodynamic antagonism. Use Caution/Monitor. Closely monitor for signs of altered clinical response to either methylphenidate or an antipsychotic when using these drugs in combination.

• methylprednisolone

  methylprednisolone will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• metoclopramide

  aripiprazole and metoclopramide both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.

• metronidazole

  metronidazole will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• miconazole vaginal

  miconazole vaginal will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• midazolam

  midazolam and aripiprazole both increase sedation. Use Caution/Monitor.

• midazolam intranasal

  midazolam intranasal, aripiprazole. Either increases effects of the other by pharmacodynamic synergism. Modify Therapy/Monitor Closely. Concomitant use of barbiturates, alcohol, or other CNS depressants may increase the risk of hypoventilation, airway obstruction, desaturation, or apnea and may contribute to profound and/or prolonged drug effect.

• midodrine

  aripiprazole increases and midodrine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• mifepristone

  mifepristone will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. If these drugs must be used together, follow manufacturer recommendations

• miglitol

  aripiprazole, miglitol. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• milnacipran

  milnacipran, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• mirabegron

  mirabegron will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor.

• mirtazapine

  aripiprazole and mirtazapine both increase sedation. Use Caution/Monitor.
  
  aripiprazole and mirtazapine both increase QTc interval. Use Caution/Monitor.

• mitotane

  mitotane decreases levels of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Mitotane is a strong inducer of cytochrome P-4503A4; monitor when coadministered with CYP3A4 substrates for possible dosage adjustments.

• modafinil

  modafinil will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  aripiprazole increases and modafinil decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• morphine

  morphine and aripiprazole both increase sedation. Use Caution/Monitor.

• motherwort

  aripiprazole and motherwort both increase sedation. Use Caution/Monitor.

• moxonidine

  aripiprazole and moxonidine both increase sedation. Use Caution/Monitor.

• nabilone

  aripiprazole and nabilone both increase sedation. Use Caution/Monitor.

• nalbuphine

  nalbuphine and aripiprazole both increase sedation. Use Caution/Monitor.

• naratriptan

  naratriptan, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• nateglinide

  aripiprazole, nateglinide. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• nelfinavir

  nelfinavir will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• nevirapine

  nevirapine will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• nifedipine

  nifedipine will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• nilotinib

  nilotinib will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• nizatidine

  nizatidine will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely.

• norepinephrine

  aripiprazole increases and norepinephrine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• nortriptyline

  aripiprazole and nortriptyline both increase sedation. Use Caution/Monitor.
  
  aripiprazole and nortriptyline both increase QTc interval. Use Caution/Monitor.

• octreotide

  aripiprazole and octreotide both increase QTc interval. Use Caution/Monitor.

• ofloxacin

  aripiprazole and ofloxacin both increase QTc interval. Use Caution/Monitor.

• olanzapine

  aripiprazole and olanzapine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and olanzapine both increase sedation. Use Caution/Monitor.
  
  aripiprazole and olanzapine both increase QTc interval. Use Caution/Monitor. Limited data, including some case reports, suggest that olanzapine may be associated with a significant prolongation of the QTc interval in rare instances

• oliceridine

  oliceridine, aripiprazole. Either increases toxicity of the other by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Profound sedation, respiratory depression, coma, and death may result if coadministered. Reserve concomitant prescribing of these drugs in patients for whom other treatment options are inadequate. Limit dosages and durations to the minimum required. Monitor closely for signs of respiratory depression and sedation.
  
  oliceridine, aripiprazole. Either increases toxicity of the other by pharmacodynamic synergism. Modify Therapy/Monitor Closely. Profound sedation, respiratory depression, coma, and death may result if coadministered. Reserve concomitant prescribing of these drugs in patients for whom other treatment options are inadequate. Limit dosages and durations to the minimum required. Monitor closely for signs of respiratory depression and sedation.

• olodaterol inhaled

  aripiprazole and olodaterol inhaled both increase QTc interval. Use Caution/Monitor.

• onabotulinumtoxinA

  onabotulinumtoxinA decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  onabotulinumtoxinA decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of onabotulinumtoxinA by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• opium tincture

  opium tincture and aripiprazole both increase sedation. Use Caution/Monitor.

• orphenadrine

  orphenadrine and aripiprazole both increase sedation. Use Caution/Monitor.

• osilodrostat

  osilodrostat and aripiprazole both increase QTc interval. Use Caution/Monitor.

• oxazepam

  oxazepam and aripiprazole both increase sedation. Use Caution/Monitor.

• oxcarbazepine

  oxcarbazepine will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• oxybutynin

  oxybutynin decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  oxybutynin decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of oxybutynin by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• oxybutynin topical

  oxybutynin topical decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  oxybutynin topical decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of oxybutynin topical by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• oxybutynin transdermal

  oxybutynin transdermal decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  oxybutynin transdermal decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of oxybutynin transdermal by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• oxycodone

  oxycodone and aripiprazole both increase sedation. Use Caution/Monitor.

• oxymorphone

  oxymorphone and aripiprazole both increase sedation. Use Caution/Monitor.

• paliperidone

  aripiprazole and paliperidone both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and paliperidone both increase sedation. Use Caution/Monitor.

• pancuronium

  pancuronium decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  pancuronium decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of pancuronium by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• papaveretum

  papaveretum and aripiprazole both increase sedation. Use Caution/Monitor.

• papaverine

  aripiprazole and papaverine both increase sedation. Use Caution/Monitor.

• paroxetine

  paroxetine, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• pasireotide

  aripiprazole and pasireotide both increase QTc interval. Use Caution/Monitor.

• peginterferon alfa 2b

  peginterferon alfa 2b, aripiprazole. Other (see comment). Use Caution/Monitor. Comment: When patients are administered peginterferon alpha-2b with CYP2D6 substrates, the therapeutic effect of these drugs may be altered. Peginterferon alpha-2b may increase or decrease levels of CYP2D6 substrate.

• pentazocine

  pentazocine and aripiprazole both increase sedation. Use Caution/Monitor.

• pentobarbital

  pentobarbital will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  pentobarbital and aripiprazole both increase sedation. Use Caution/Monitor.

• perphenazine

  aripiprazole and perphenazine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and perphenazine both increase sedation. Use Caution/Monitor.

• phendimetrazine

  aripiprazole increases and phendimetrazine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• phenelzine

  phenelzine, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• phenobarbital

  phenobarbital will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  phenobarbital and aripiprazole both increase sedation. Use Caution/Monitor.

• phentermine

  aripiprazole increases and phentermine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• phenylephrine

  aripiprazole increases and phenylephrine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• phenylephrine PO

  aripiprazole increases and phenylephrine PO decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor. .

• phenytoin

  phenytoin will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• pholcodine

  aripiprazole and pholcodine both increase sedation. Use Caution/Monitor.

• pimozide

  aripiprazole and pimozide both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and pimozide both increase sedation. Use Caution/Monitor.

• pioglitazone

  aripiprazole, pioglitazone. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• pirbuterol

  aripiprazole increases and pirbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• posaconazole

  posaconazole will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• pralidoxime

  pralidoxime decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  pralidoxime decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of pralidoxime by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• pramlintide

  aripiprazole, pramlintide. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• prednisone

  prednisone will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• primaquine

  aripiprazole and primaquine both increase QTc interval. Use Caution/Monitor.

• primidone

  primidone will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  primidone and aripiprazole both increase sedation. Use Caution/Monitor.

• procarbazine

  procarbazine, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• prochlorperazine

  aripiprazole and prochlorperazine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and prochlorperazine both increase sedation. Use Caution/Monitor.

• promethazine

  aripiprazole and promethazine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  promethazine and aripiprazole both increase sedation. Use Caution/Monitor.
  
  promethazine, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• propantheline

  propantheline decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  propantheline decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of propantheline by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• propylhexedrine

  aripiprazole increases and propylhexedrine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• protriptyline

  aripiprazole and protriptyline both increase sedation. Use Caution/Monitor.

• quazepam

  quazepam and aripiprazole both increase sedation. Use Caution/Monitor.

• quetiapine

  aripiprazole and quetiapine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and quetiapine both increase sedation. Use Caution/Monitor.

• quinidine

  quinidine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor.

• quinupristin/dalfopristin

  quinupristin/dalfopristin will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• ramelteon

  aripiprazole and ramelteon both increase sedation. Use Caution/Monitor.

• rapacuronium

  rapacuronium decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  rapacuronium decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of rapacuronium by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• remimazolam

  remimazolam, aripiprazole. Either increases toxicity of the other by sedation. Modify Therapy/Monitor Closely. Coadministration may result in profound sedation, respiratory depression, coma, and/or death. Continuously monitor vital signs during sedation and recovery period if coadministered. Carefully titrate remimazolam dose if administered with opioid analgesics and/or sedative/hypnotics.

• repaglinide

  aripiprazole, repaglinide. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• ribociclib

  ribociclib will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• rifapentine

  rifapentine will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• rilpivirine

  aripiprazole and rilpivirine both increase QTc interval. Use Caution/Monitor.

• risperidone

  aripiprazole and risperidone both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and risperidone both increase sedation. Use Caution/Monitor.
  
  aripiprazole and risperidone both increase QTc interval. Use Caution/Monitor.

• ritonavir

  ritonavir will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• rocuronium

  rocuronium decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  rocuronium decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of rocuronium by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• rolapitant

  rolapitant will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor. Rolapitant may increase plasma concentrations of CYP2D6 substrates for at least 28 days following rolapitant administration.

• romidepsin

  aripiprazole and romidepsin both increase QTc interval. Use Caution/Monitor.

• rosiglitazone

  aripiprazole, rosiglitazone. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• rucaparib

  rucaparib will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Adjust dosage of CYP3A4 substrates, if clinically indicated.

• rufinamide

  rufinamide will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• salmeterol

  aripiprazole increases and salmeterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• saquinavir

  saquinavir increases levels of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Potential for increased toxicity. Consider aripiprazole dose reduction by 50%.

• saxagliptin

  aripiprazole, saxagliptin. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• scopolamine

  scopolamine decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  scopolamine decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of scopolamine by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• scullcap

  aripiprazole and scullcap both increase sedation. Use Caution/Monitor.

• secobarbital

  secobarbital will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  secobarbital and aripiprazole both increase sedation. Use Caution/Monitor.

• selegiline

  selegiline, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• sertraline

  sertraline will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor.
  
  aripiprazole and sertraline both increase QTc interval. Use Caution/Monitor.

• shepherd's purse

  aripiprazole and shepherd's purse both increase sedation. Use Caution/Monitor.

• sitagliptin

  aripiprazole, sitagliptin. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• sodium sulfate/?magnesium sulfate/potassium chloride

  sodium sulfate/?magnesium sulfate/potassium chloride increases effects of aripiprazole by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• sodium sulfate/potassium sulfate/magnesium sulfate

  sodium sulfate/potassium sulfate/magnesium sulfate increases effects of aripiprazole by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• solifenacin

  solifenacin decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  solifenacin decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of solifenacin by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.
  
  aripiprazole and solifenacin both increase QTc interval. Use Caution/Monitor.

• stiripentol

  stiripentol, aripiprazole. affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Stiripentol is a CYP3A4 inhibitor and inducer. Monitor CYP3A4 substrates coadministered with stiripentol for increased or decreased effects. CYP3A4 substrates may require dosage adjustment.

• sufentanil

  sufentanil and aripiprazole both increase sedation. Use Caution/Monitor.

• sumatriptan

  sumatriptan, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• sumatriptan intranasal

  sumatriptan intranasal, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• sunitinib

  aripiprazole and sunitinib both increase QTc interval. Use Caution/Monitor.

• tacrolimus

  aripiprazole and tacrolimus both increase QTc interval. Use Caution/Monitor.

• tapentadol

  tapentadol and aripiprazole both increase sedation. Use Caution/Monitor.

• tazemetostat

  tazemetostat will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• tecovirimat

  tecovirimat will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Tecovirimat is a weak CYP3A4 inducer. Monitor sensitive CYP3A4 substrates for effectiveness if coadministered.

• telavancin

  aripiprazole and telavancin both increase QTc interval. Use Caution/Monitor.

• temazepam

  temazepam and aripiprazole both increase sedation. Use Caution/Monitor.

• terbinafine

  terbinafine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Modify Therapy/Monitor Closely. Assess need to reduce dose of CYP2D6-metabolized drug.

• terbutaline

  aripiprazole increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• tetrabenazine

  aripiprazole and tetrabenazine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Modify Therapy/Monitor Closely.

• thioridazine

  aripiprazole and thioridazine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and thioridazine both increase sedation. Use Caution/Monitor.

• thiothixene

  aripiprazole and thiothixene both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and thiothixene both increase sedation. Use Caution/Monitor.

• tiotropium

  tiotropium decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  tiotropium decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of tiotropium by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• tolazamide

  aripiprazole, tolazamide. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• tolbutamide

  aripiprazole, tolbutamide. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• tolterodine

  tolterodine decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  tolterodine decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of tolterodine by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• topiramate

  topiramate will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  aripiprazole and topiramate both increase sedation. Modify Therapy/Monitor Closely.

• tramadol

  tramadol and aripiprazole both increase sedation. Use Caution/Monitor.

• tranylcypromine

  tranylcypromine, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• trazodone

  aripiprazole and trazodone both increase sedation. Use Caution/Monitor.

• triazolam

  triazolam and aripiprazole both increase sedation. Use Caution/Monitor.

• triclabendazole

  aripiprazole and triclabendazole both increase QTc interval. Use Caution/Monitor.

• triclofos

  triclofos and aripiprazole both increase sedation. Use Caution/Monitor.

• trifluoperazine

  aripiprazole and trifluoperazine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and trifluoperazine both increase sedation. Use Caution/Monitor.

• trimipramine

  aripiprazole and trimipramine both increase sedation. Use Caution/Monitor.
  
  aripiprazole and trimipramine both increase QTc interval. Use Caution/Monitor.

• triprolidine

  triprolidine and aripiprazole both increase sedation. Use Caution/Monitor.

• triptorelin

  aripiprazole and triptorelin both increase QTc interval. Use Caution/Monitor.

• trospium chloride

  trospium chloride decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  trospium chloride decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of trospium chloride by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• vardenafil

  aripiprazole and vardenafil both increase QTc interval. Use Caution/Monitor.

• vecuronium

  vecuronium decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  vecuronium decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of vecuronium by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• venlafaxine

  venlafaxine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor.
  
  venlafaxine, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• verapamil

  verapamil will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• vilanterol/fluticasone furoate inhaled

  aripiprazole and vilanterol/fluticasone furoate inhaled both increase QTc interval. Use Caution/Monitor.

• vilazodone

  vilazodone, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• voclosporin

  aripiprazole and voclosporin both increase QTc interval. Use Caution/Monitor.

• voriconazole

  voriconazole will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• xylometazoline

  aripiprazole increases and xylometazoline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• yohimbine

  aripiprazole increases and yohimbine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• zafirlukast

  zafirlukast will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• ziconotide

  aripiprazole and ziconotide both increase sedation. Use Caution/Monitor.

• ziprasidone

  aripiprazole and ziprasidone both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and ziprasidone both increase sedation. Use Caution/Monitor.

• zolmitriptan

  zolmitriptan, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• zotepine

  aripiprazole and zotepine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and zotepine both increase sedation. Use Caution/Monitor.

Minor (30)

• amiodarone

  amiodarone will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• amobarbital

  amobarbital will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.

• asenapine

  asenapine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• brimonidine

  brimonidine increases effects of aripiprazole by pharmacodynamic synergism. Minor/Significance Unknown. Increased CNS depression.

• celecoxib

  celecoxib will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• chasteberry

  chasteberry decreases effects of aripiprazole by pharmacodynamic antagonism. Minor/Significance Unknown. (Theoretical interaction).

• chloroquine

  chloroquine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• cimetidine

  cimetidine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• darifenacin

  darifenacin will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• diphenhydramine

  diphenhydramine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• dronedarone

  dronedarone will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• duloxetine

  duloxetine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• ethanol

  ethanol, aripiprazole. Either increases toxicity of the other by pharmacodynamic synergism. Minor/Significance Unknown. Additive CNS depression.

• eucalyptus

  aripiprazole and eucalyptus both increase sedation. Minor/Significance Unknown.

• famotidine

  famotidine decreases levels of aripiprazole by unspecified interaction mechanism. Minor/Significance Unknown.

• haloperidol

  haloperidol will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• ibuprofen/famotidine

  ibuprofen/famotidine decreases levels of aripiprazole by unspecified interaction mechanism. Minor/Significance Unknown.

• imatinib

  imatinib will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• maraviroc

  maraviroc will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• marijuana

  marijuana will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• nilotinib

  nilotinib will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• parecoxib

  parecoxib will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• perphenazine

  perphenazine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• propafenone

  propafenone will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• quinacrine

  quinacrine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• ranolazine

  ranolazine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• ritonavir

  ritonavir will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• sage

  aripiprazole and sage both increase sedation. Minor/Significance Unknown.

• thioridazine

  thioridazine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• tipranavir

  tipranavir will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• abametapir

  Serious - Use Alternative (1)abametapir will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. For 2 weeks after abametapir application, avoid taking drugs that are CYP3A4 substrates. If not feasible, avoid use of abametapir.

• abiraterone

  Monitor Closely (1)abiraterone increases levels of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor. Avoid coadministration of abiraterone with substrates of CYP2D6. If alternative therapy cannot be used, exercise caution and consider a dose reduction of the CYP2D6 substrate.

• acarbose

  Monitor Closely (1)aripiprazole, acarbose. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• aclidinium

  Monitor Closely (2)aclidinium decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of aclidinium by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• albiglutide

  Monitor Closely (1)aripiprazole, albiglutide. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• albuterol

  Monitor Closely (1)aripiprazole increases and albuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• alfentanil

  Monitor Closely (1)alfentanil and aripiprazole both increase sedation. Use Caution/Monitor.

• alfuzosin

  Monitor Closely (1)aripiprazole and alfuzosin both increase QTc interval. Use Caution/Monitor.

• almotriptan

  Monitor Closely (1)almotriptan, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• alprazolam

  Monitor Closely (1)alprazolam and aripiprazole both increase sedation. Use Caution/Monitor.

• amifostine

  Monitor Closely (1)amifostine, aripiprazole. Either increases effects of the other by anti-hypertensive channel blocking. Use Caution/Monitor. Due to its alpha adrenergic antagonism, atypical antipsychotic agents has the potential to enhance the effect of certain antihypertensive agents. Monitor blood pressure and adjust dose accordingly.

• amiodarone

  Serious - Use Alternative (1)aripiprazole and amiodarone both increase QTc interval. Avoid or Use Alternate Drug.Minor (1)amiodarone will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• amisulpride

  Contraindicated (1)amisulpride, aripiprazole. Either increases toxicity of the other by Other (see comment). Contraindicated. Comment: Increases risk of neuroleptic malignant syndrome.Serious - Use Alternative (1)aripiprazole and amisulpride both increase QTc interval. Avoid or Use Alternate Drug. ECG monitoring is recommended if coadministered.

• amitriptyline

  Monitor Closely (2)aripiprazole and amitriptyline both increase QTc interval. Use Caution/Monitor.
  
  aripiprazole and amitriptyline both increase sedation. Use Caution/Monitor.

• amobarbital

  Monitor Closely (1)amobarbital and aripiprazole both increase sedation. Use Caution/Monitor.Minor (1)amobarbital will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.

• amoxapine

  Monitor Closely (3)aripiprazole and amoxapine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Modify Therapy/Monitor Closely.
  
  aripiprazole and amoxapine both increase sedation. Use Caution/Monitor.
  
  aripiprazole and amoxapine both increase QTc interval. Use Caution/Monitor.

• anagrelide

  Monitor Closely (1)aripiprazole and anagrelide both increase QTc interval. Use Caution/Monitor.

• anticholinergic/sedative combos

  Monitor Closely (3)anticholinergic/sedative combos decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  anticholinergic/sedative combos decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of anticholinergic/sedative combos by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• apalutamide

  Serious - Use Alternative (1)apalutamide will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Coadministration of apalutamide, a strong CYP3A4 inducer, with drugs that are CYP3A4 substrates can result in lower exposure to these medications. Avoid or substitute another drug for these medications when possible. Evaluate for loss of therapeutic effect if medication must be coadministered. Adjust dose according to prescribing information if needed.

• apomorphine

  Monitor Closely (2)aripiprazole and apomorphine both increase sedation. Use Caution/Monitor.
  
  aripiprazole and apomorphine both increase QTc interval. Use Caution/Monitor.Serious - Use Alternative (1)aripiprazole decreases effects of apomorphine by pharmacodynamic antagonism. Avoid or Use Alternate Drug.

• aprepitant

  Monitor Closely (1)aprepitant will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• arformoterol

  Monitor Closely (2)aripiprazole increases and arformoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.
  
  aripiprazole and arformoterol both increase QTc interval. Use Caution/Monitor.

• armodafinil

  Monitor Closely (2)armodafinil will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  aripiprazole increases and armodafinil decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• arsenic trioxide

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

• artemether/lumefantrine

  Monitor Closely (2)artemether/lumefantrine will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  artemether/lumefantrine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor.Serious - Use Alternative (1)aripiprazole and artemether/lumefantrine both increase QTc interval. Avoid or Use Alternate Drug.

• asenapine

  Serious - Use Alternative (1)aripiprazole and asenapine both increase QTc interval. Avoid or Use Alternate Drug.Minor (1)asenapine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• atazanavir

  Monitor Closely (1)atazanavir will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• atracurium

  Monitor Closely (3)atracurium decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  atracurium decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of atracurium by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• atropine

  Monitor Closely (3)atropine decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  atropine decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of atropine by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• atropine IV/IM

  Monitor Closely (3)aripiprazole increases effects of atropine IV/IM by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.
  
  atropine IV/IM decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  atropine IV/IM decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.

• azelastine

  Monitor Closely (1)azelastine and aripiprazole both increase sedation. Use Caution/Monitor.

• azithromycin

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

• baclofen

  Monitor Closely (1)baclofen and aripiprazole both increase sedation. Use Caution/Monitor.

• bedaquiline

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

• belladonna alkaloids

  Monitor Closely (3)belladonna alkaloids decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  belladonna alkaloids decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of belladonna alkaloids by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• belladonna and opium

  Monitor Closely (4)belladonna and opium decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  belladonna and opium decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of belladonna and opium by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.
  
  belladonna and opium and aripiprazole both increase sedation. Use Caution/Monitor.

• belzutifan

  Monitor Closely (1)belzutifan will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. If unable to avoid coadministration of belzutifan with sensitive CYP3A4 substrates, consider increasing the sensitive CYP3A4 substrate dose in accordance with its prescribing information.

• benazepril

  Monitor Closely (1)aripiprazole, benazepril. Either increases effects of the other by pharmacodynamic synergism. Use Caution/Monitor. Enhanced hypotensive effects.

• benperidol

  Monitor Closely (2)aripiprazole and benperidol both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and benperidol both increase sedation. Use Caution/Monitor.

• benzhydrocodone/acetaminophen

  Serious - Use Alternative (1)benzhydrocodone/acetaminophen, aripiprazole. Either increases toxicity of the other by pharmacodynamic synergism. Avoid or Use Alternate Drug. Profound sedation, respiratory depression, coma, and death may result if coadministered. Reserve concomitant prescribing of these drugs in patients for whom other treatment options are inadequate. Limit dosages and durations to the minimum required. Monitor closely for signs of respiratory depression and sedation.

• benzphetamine

  Monitor Closely (1)aripiprazole increases and benzphetamine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• bosentan

  Monitor Closely (1)bosentan will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• brexanolone

  Monitor Closely (1)brexanolone, aripiprazole. Either increases toxicity of the other by sedation. Use Caution/Monitor.

• brimonidine

  Minor (1)brimonidine increases effects of aripiprazole by pharmacodynamic synergism. Minor/Significance Unknown. Increased CNS depression.

• bromocriptine

  Serious - Use Alternative (1)aripiprazole decreases effects of bromocriptine by pharmacodynamic antagonism. Avoid or Use Alternate Drug.

• brompheniramine

  Monitor Closely (1)brompheniramine and aripiprazole both increase sedation. Use Caution/Monitor.

• budesonide

  Monitor Closely (1)budesonide will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• buprenorphine

  Monitor Closely (1)buprenorphine and aripiprazole both increase sedation. Use Caution/Monitor.Serious - Use Alternative (1)aripiprazole and buprenorphine both increase QTc interval. Avoid or Use Alternate Drug.

• buprenorphine buccal

  Monitor Closely (1)buprenorphine buccal and aripiprazole both increase sedation. Use Caution/Monitor.

• buprenorphine, long-acting injection

  Monitor Closely (1)aripiprazole increases toxicity of buprenorphine, long-acting injection by pharmacodynamic synergism. Modify Therapy/Monitor Closely. Coadministration of buprenorphine and benzodiazepines or other CNS depressants increases risk of adverse reactions including overdose, respiratory depression, and death. Cessation of benzodiazepines or other CNS depressants is preferred in most cases. In some cases, monitoring at a higher level of care for tapering CNS depressants may be appropriate. In others, gradually tapering a patient off of a prescribed benzodiazepine or other CNS depressant or decreasing to the lowest effective dose may be appropriate.

• bupropion

  Monitor Closely (1)bupropion will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor.

• butabarbital

  Monitor Closely (2)butabarbital will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  butabarbital and aripiprazole both increase sedation. Use Caution/Monitor.

• butalbital

  Monitor Closely (2)butalbital will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  butalbital and aripiprazole both increase sedation. Use Caution/Monitor.

• butorphanol

  Monitor Closely (1)butorphanol and aripiprazole both increase sedation. Use Caution/Monitor.

• cabergoline

  Serious - Use Alternative (1)aripiprazole decreases effects of cabergoline by pharmacodynamic antagonism. Contraindicated.

• caffeine

  Monitor Closely (1)aripiprazole increases and caffeine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• calcium/magnesium/potassium/sodium oxybates

  Serious - Use Alternative (1)aripiprazole, calcium/magnesium/potassium/sodium oxybates. Either increases effects of the other by pharmacodynamic synergism. Avoid or Use Alternate Drug. Profound sedation, respiratory depression, coma, and death may result if coadministered. Reserve concomitant prescribing of these drugs in patients for whom other treatment options are inadequate. Limit dosages and durations to the minimum required. Monitor closely for signs of respiratory depression and sedation.

• captopril

  Monitor Closely (1)aripiprazole, captopril. Either increases effects of the other by pharmacodynamic synergism. Use Caution/Monitor. Both drugs lower blood pressure. Monitor blood pressure.

• carbamazepine

  Serious - Use Alternative (1)carbamazepine will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. If carbamazepine is started in a patient already taking aripiprazole, the aripiprazole dose should be doubled; reduce aripiprazole dose if carbamazepine is discontinued

• carbinoxamine

  Monitor Closely (1)carbinoxamine and aripiprazole both increase sedation. Use Caution/Monitor.

• carisoprodol

  Monitor Closely (1)carisoprodol and aripiprazole both increase sedation. Use Caution/Monitor.

• celecoxib

  Minor (1)celecoxib will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• cenobamate

  Monitor Closely (2)cenobamate, aripiprazole. Either increases effects of the other by sedation. Use Caution/Monitor.
  
  cenobamate will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Increase dose of CYP3A4 substrate, as needed, when coadministered with cenobamate.

• chasteberry

  Minor (1)chasteberry decreases effects of aripiprazole by pharmacodynamic antagonism. Minor/Significance Unknown. (Theoretical interaction).

• chloral hydrate

  Monitor Closely (1)chloral hydrate and aripiprazole both increase sedation. Use Caution/Monitor.

• chloramphenicol

  Serious - Use Alternative (1)chloramphenicol will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.

• chlordiazepoxide

  Monitor Closely (1)chlordiazepoxide and aripiprazole both increase sedation. Use Caution/Monitor.

• chloroquine

  Serious - Use Alternative (2)chloroquine will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
  
  aripiprazole and chloroquine both increase QTc interval. Avoid or Use Alternate Drug.Minor (1)chloroquine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• chlorpheniramine

  Monitor Closely (1)chlorpheniramine and aripiprazole both increase sedation. Use Caution/Monitor.

• chlorpromazine

  Monitor Closely (2)aripiprazole and chlorpromazine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and chlorpromazine both increase sedation. Use Caution/Monitor.Serious - Use Alternative (1)aripiprazole and chlorpromazine both increase QTc interval. Avoid or Use Alternate Drug.

• chlorpropamide

  Monitor Closely (1)aripiprazole, chlorpropamide. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• chlorzoxazone

  Monitor Closely (1)chlorzoxazone and aripiprazole both increase sedation. Use Caution/Monitor.

• cimetidine

  Serious - Use Alternative (1)cimetidine will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.Minor (1)cimetidine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• cinnarizine

  Monitor Closely (1)cinnarizine and aripiprazole both increase sedation. Use Caution/Monitor.

• ciprofloxacin

  Monitor Closely (1)aripiprazole and ciprofloxacin both increase QTc interval. Use Caution/Monitor.

• cisapride

  Contraindicated (1)aripiprazole and cisapride both increase QTc interval. Contraindicated.

• cisatracurium

  Monitor Closely (3)cisatracurium decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  cisatracurium decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of cisatracurium by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• citalopram

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

• clarithromycin

  Serious - Use Alternative (2)aripiprazole and clarithromycin both increase QTc interval. Avoid or Use Alternate Drug.
  
  clarithromycin will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.

• clemastine

  Monitor Closely (1)clemastine and aripiprazole both increase sedation. Use Caution/Monitor.

• clobazam

  Monitor Closely (2)clobazam will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor. Lower doses of drugs metabolized by CYP2D6 may be required when used concomitantly.
  
  aripiprazole, clobazam. Other (see comment). Use Caution/Monitor. Comment: Concomitant administration can increase the potential for CNS effects (e.g., increased sedation or respiratory depression).

• clomipramine

  Monitor Closely (2)aripiprazole and clomipramine both increase sedation. Use Caution/Monitor.
  
  aripiprazole and clomipramine both increase QTc interval. Use Caution/Monitor.

• clonazepam

  Monitor Closely (1)clonazepam and aripiprazole both increase sedation. Use Caution/Monitor.

• clonidine

  Monitor Closely (1)clonidine, aripiprazole. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Additive hypotensive effects; potential delirium.

• clorazepate

  Monitor Closely (1)clorazepate and aripiprazole both increase sedation. Use Caution/Monitor.

• clozapine

  Monitor Closely (2)aripiprazole and clozapine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and clozapine both increase sedation. Use Caution/Monitor.Serious - Use Alternative (1)aripiprazole and clozapine both increase QTc interval. Avoid or Use Alternate Drug.

• cobicistat

  Monitor Closely (1)cobicistat will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Reduce aripiprazole dose by 25% and by approximately 50% if administered with CYP3A4 inhibitor and CYP206 inhibitor

• codeine

  Monitor Closely (1)codeine and aripiprazole both increase sedation. Use Caution/Monitor.

• conivaptan

  Monitor Closely (1)conivaptan will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• cortisone

  Monitor Closely (1)cortisone will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• crizotinib

  Monitor Closely (1)crizotinib increases levels of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Dose reduction may be needed for coadministered drugs that are predominantly metabolized by CYP3A.Serious - Use Alternative (1)aripiprazole and crizotinib both increase QTc interval. Avoid or Use Alternate Drug.

• crofelemer

  Monitor Closely (1)crofelemer increases levels of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Crofelemer has the potential to inhibit CYP3A4 at concentrations expected in the gut; unlikely to inhibit systemically because minimally absorbed.

• cyclizine

  Monitor Closely (4)cyclizine decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  cyclizine decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of cyclizine by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.
  
  cyclizine and aripiprazole both increase sedation. Use Caution/Monitor.

• cyclobenzaprine

  Monitor Closely (3)cyclobenzaprine decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  aripiprazole increases effects of cyclobenzaprine by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.
  
  cyclobenzaprine and aripiprazole both increase sedation. Use Caution/Monitor.

• cyclosporine

  Monitor Closely (1)cyclosporine will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• cyproheptadine

  Monitor Closely (1)cyproheptadine and aripiprazole both increase sedation. Use Caution/Monitor.

• dabrafenib

  Monitor Closely (1)dabrafenib will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely.

• dacomitinib

  Serious - Use Alternative (1)dacomitinib will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Avoid or Use Alternate Drug. Avoid use with CYP2D6 substrates where minimal increases in concentration of the CYP2D6 substrate may lead to serious or life-threatening toxicities.

• dantrolene

  Monitor Closely (1)dantrolene and aripiprazole both increase sedation. Use Caution/Monitor.

• daridorexant

  Monitor Closely (1)aripiprazole and daridorexant both increase sedation. Modify Therapy/Monitor Closely. Coadministration increases risk of CNS depression, which can lead to additive impairment of psychomotor performance and cause daytime impairment.

• darifenacin

  Monitor Closely (4)darifenacin will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  darifenacin decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  darifenacin decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of darifenacin by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.Minor (1)darifenacin will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• darunavir

  Monitor Closely (1)darunavir will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• dasatinib

  Monitor Closely (2)dasatinib will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  aripiprazole and dasatinib both increase QTc interval. Use Caution/Monitor.

• deferasirox

  Monitor Closely (1)deferasirox will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• degarelix

  Monitor Closely (1)aripiprazole and degarelix both increase QTc interval. Use Caution/Monitor.

• desflurane

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

• desipramine

  Monitor Closely (2)aripiprazole and desipramine both increase sedation. Use Caution/Monitor.
  
  aripiprazole and desipramine both increase QTc interval. Use Caution/Monitor.

• desvenlafaxine

  Monitor Closely (1)desvenlafaxine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor. Desvenlafaxine inhibits CYP2D6; with higher desvenlafaxine doses (ie, 400 mg) decrease the CYP2D6 substrate dose by up to 50%; no dosage adjustment needed with desvenlafaxine doses <100 mg

• deutetrabenazine

  Monitor Closely (3)aripiprazole and deutetrabenazine both increase sedation. Use Caution/Monitor.
  
  aripiprazole and deutetrabenazine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Modify Therapy/Monitor Closely. The risk for parkinsonism, neuroleptic malignant syndrome, and akathisia may be increased by concomitant use of deutetrabenazine and dopamine antagonists or antipsychotics.
  
  aripiprazole and deutetrabenazine both increase QTc interval. Use Caution/Monitor.

• dexamethasone

  Monitor Closely (1)dexamethasone will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• dexchlorpheniramine

  Monitor Closely (1)dexchlorpheniramine and aripiprazole both increase sedation. Use Caution/Monitor.

• dexfenfluramine

  Monitor Closely (1)aripiprazole increases and dexfenfluramine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• dexmedetomidine

  Monitor Closely (1)dexmedetomidine and aripiprazole both increase sedation. Use Caution/Monitor.

• dexmethylphenidate

  Monitor Closely (1)aripiprazole increases and dexmethylphenidate decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• dextroamphetamine

  Monitor Closely (1)aripiprazole increases and dextroamphetamine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• dextromethorphan

  Monitor Closely (1)dextromethorphan, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• dextromoramide

  Monitor Closely (1)dextromoramide and aripiprazole both increase sedation. Use Caution/Monitor.

• DHEA, herbal

  Monitor Closely (1)DHEA, herbal will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• diamorphine

  Monitor Closely (1)diamorphine and aripiprazole both increase sedation. Use Caution/Monitor.

• diazepam

  Monitor Closely (1)diazepam and aripiprazole both increase sedation. Use Caution/Monitor.

• dichlorphenamide

  Monitor Closely (1)dichlorphenamide and aripiprazole both decrease serum potassium. Use Caution/Monitor.

• dicyclomine

  Monitor Closely (3)dicyclomine decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  dicyclomine decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of dicyclomine by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• diethylpropion

  Monitor Closely (1)aripiprazole increases and diethylpropion decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• difelikefalin

  Monitor Closely (1)difelikefalin and aripiprazole both increase sedation. Use Caution/Monitor.

• difenoxin hcl

  Monitor Closely (1)difenoxin hcl and aripiprazole both increase sedation. Use Caution/Monitor.

• dihydroergotamine

  Monitor Closely (1)dihydroergotamine, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• diltiazem

  Monitor Closely (1)diltiazem will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Closely monitor when aripiprazole is used with a moderate CYP3A4 inhibitor, due to potential risks for increased aripiprazole systemic exposure and effects. Refer to drug monograph for specific dosing modifications are dependent on indication, genotype, and drug formulation.

• dimenhydrinate

  Monitor Closely (1)dimenhydrinate and aripiprazole both increase sedation. Use Caution/Monitor.

• diphenhydramine

  Monitor Closely (4)diphenhydramine decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  diphenhydramine decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of diphenhydramine by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.
  
  diphenhydramine and aripiprazole both increase sedation. Use Caution/Monitor.Minor (1)diphenhydramine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• diphenoxylate hcl

  Monitor Closely (1)diphenoxylate hcl and aripiprazole both increase sedation. Use Caution/Monitor.

• dipipanone

  Monitor Closely (1)dipipanone and aripiprazole both increase sedation. Use Caution/Monitor.

• disopyramide

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

• dobutamine

  Monitor Closely (1)aripiprazole increases and dobutamine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• dofetilide

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

• dolasetron

  Monitor Closely (1)aripiprazole and dolasetron both increase QTc interval. Use Caution/Monitor.

• donepezil

  Monitor Closely (1)donepezil and aripiprazole both increase QTc interval. Use Caution/Monitor.

• dopamine

  Monitor Closely (1)aripiprazole increases and dopamine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.Serious - Use Alternative (1)aripiprazole decreases effects of dopamine by pharmacodynamic antagonism. Contraindicated.

• dopexamine

  Monitor Closely (1)aripiprazole increases and dopexamine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• dosulepin

  Monitor Closely (1)aripiprazole and dosulepin both increase sedation. Use Caution/Monitor.

• doxepin

  Monitor Closely (2)aripiprazole and doxepin both increase sedation. Use Caution/Monitor.
  
  doxepin and aripiprazole both increase QTc interval. Use Caution/Monitor.

• doxylamine

  Monitor Closely (1)doxylamine and aripiprazole both increase sedation. Use Caution/Monitor.

• dronedarone

  Contraindicated (1)aripiprazole and dronedarone both increase QTc interval. Contraindicated.Monitor Closely (1)dronedarone will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.Minor (1)dronedarone will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• droperidol

  Monitor Closely (2)aripiprazole and droperidol both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and droperidol both increase sedation. Use Caution/Monitor.Serious - Use Alternative (1)aripiprazole and droperidol both increase QTc interval. Avoid or Use Alternate Drug.

• duloxetine

  Minor (1)duloxetine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• duvelisib

  Monitor Closely (1)duvelisib will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. will increase the level or effect of

• efavirenz

  Monitor Closely (2)efavirenz will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  efavirenz and aripiprazole both increase QTc interval. Use Caution/Monitor.

• elagolix

  Monitor Closely (1)elagolix will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Elagolix is a weak-to-moderate CYP3A4 inducer. Monitor CYP3A substrates if coadministered. Consider increasing CYP3A substrate dose if needed.

• eletriptan

  Monitor Closely (1)eletriptan, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• eliglustat

  Monitor Closely (1)eliglustat increases levels of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Modify Therapy/Monitor Closely. Monitor therapeutic drug concentrations, as indicated, or consider reducing the dosage of the concomitant drug and titrate to clinical effect.Serious - Use Alternative (1)aripiprazole and eliglustat both increase QTc interval. Avoid or Use Alternate Drug.

• elvitegravir/cobicistat/emtricitabine/tenofovir DF

  Monitor Closely (2)elvitegravir/cobicistat/emtricitabine/tenofovir DF increases levels of aripiprazole by affecting hepatic enzyme CYP2E1 metabolism. Modify Therapy/Monitor Closely. Cobicistat is a CYP3A4 inhibitor; contraindicated with CYP3A4 substrates for which elevated plasma concentrations are associated with serious and/or life-threatening events.
  
  elvitegravir/cobicistat/emtricitabine/tenofovir DF increases levels of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Modify Therapy/Monitor Closely. Cobicistat is a CYP2D6 inhibitor; caution with CYP2D6 substrates for which elevated plasma concentrations are associated with serious and/or life-threatening events.

• encorafenib

  Monitor Closely (1)encorafenib, aripiprazole. affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Encorafenib both inhibits and induces CYP3A4 at clinically relevant plasma concentrations. Coadministration of encorafenib with sensitive CYP3A4 substrates may result in increased toxicity or decreased efficacy of these agents.Serious - Use Alternative (1)aripiprazole and encorafenib both increase QTc interval. Avoid or Use Alternate Drug.

• entrectinib

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

• enzalutamide

  Serious - Use Alternative (1)enzalutamide will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.

• ephedrine

  Monitor Closely (1)aripiprazole increases and ephedrine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• epinephrine

  Monitor Closely (1)aripiprazole increases and epinephrine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• epinephrine racemic

  Monitor Closely (1)aripiprazole increases and epinephrine racemic decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• ergoloid mesylates

  Monitor Closely (1)ergoloid mesylates, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• ergotamine

  Monitor Closely (1)ergotamine, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• eribulin

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

• erythromycin base

  Serious - Use Alternative (2)aripiprazole and erythromycin base both increase QTc interval. Avoid or Use Alternate Drug.
  
  erythromycin base will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.

• erythromycin ethylsuccinate

  Serious - Use Alternative (2)erythromycin ethylsuccinate will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
  
  aripiprazole and erythromycin ethylsuccinate both increase QTc interval. Avoid or Use Alternate Drug.

• erythromycin lactobionate

  Monitor Closely (1)aripiprazole and erythromycin lactobionate both increase QTc interval. Use Caution/Monitor.Serious - Use Alternative (1)erythromycin lactobionate will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.

• erythromycin stearate

  Monitor Closely (1)aripiprazole and erythromycin stearate both increase QTc interval. Use Caution/Monitor.Serious - Use Alternative (1)erythromycin stearate will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.

• escitalopram

  Monitor Closely (1)aripiprazole and escitalopram both increase QTc interval. Use Caution/Monitor.

• esketamine intranasal

  Monitor Closely (1)esketamine intranasal, aripiprazole. Either increases toxicity of the other by sedation. Modify Therapy/Monitor Closely.

• eslicarbazepine acetate

  Monitor Closely (1)eslicarbazepine acetate will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• estazolam

  Monitor Closely (1)estazolam and aripiprazole both increase sedation. Use Caution/Monitor.

• ethanol

  Monitor Closely (1)aripiprazole and ethanol both increase sedation. Use Caution/Monitor.Minor (1)ethanol, aripiprazole. Either increases toxicity of the other by pharmacodynamic synergism. Minor/Significance Unknown. Additive CNS depression.

• etomidate

  Monitor Closely (1)etomidate and aripiprazole both increase sedation. Use Caution/Monitor.

• etravirine

  Monitor Closely (1)etravirine will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• eucalyptus

  Minor (1)aripiprazole and eucalyptus both increase sedation. Minor/Significance Unknown.

• exenatide injectable solution

  Monitor Closely (1)aripiprazole, exenatide injectable solution. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• exenatide injectable suspension

  Monitor Closely (1)aripiprazole, exenatide injectable suspension. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• famotidine

  Minor (1)famotidine decreases levels of aripiprazole by unspecified interaction mechanism. Minor/Significance Unknown.

• fedratinib

  Monitor Closely (2)fedratinib will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Adjust dose of drugs that are CYP3A4 substrates as necessary.
  
  fedratinib will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor. Adjust dose of drugs that are CYP2D6 substrates as necessary.

• fenfluramine

  Monitor Closely (2)aripiprazole decreases effects of fenfluramine by pharmacodynamic antagonism. Use Caution/Monitor. Potent serotonin receptor antagonists may decrease fenfluramine efficacy. If coadministered, monitor appropriately.
  
  aripiprazole increases and fenfluramine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• fentanyl

  Monitor Closely (1)fentanyl, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• fesoterodine

  Monitor Closely (3)fesoterodine decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  fesoterodine decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of fesoterodine by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• fexinidazole

  Serious - Use Alternative (2)fexinidazole and aripiprazole both increase QTc interval. Avoid or Use Alternate Drug. Avoid coadministration of fexinidazole with drugs known to block potassium channels or prolong QT interval.
  
  fexinidazole will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Fexinidazole inhibits CYP3A4. Coadministration may increase risk for adverse effects of CYP3A4 substrates.

• fingolimod

  Monitor Closely (1)fingolimod and aripiprazole both increase QTc interval. Use Caution/Monitor.

• flavoxate

  Monitor Closely (3)flavoxate decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  flavoxate decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of flavoxate by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• flecainide

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

• flibanserin

  Monitor Closely (1)flibanserin, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• fluconazole

  Monitor Closely (1)fluconazole will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.Serious - Use Alternative (1)aripiprazole and fluconazole both increase QTc interval. Contraindicated.

• fludrocortisone

  Monitor Closely (1)fludrocortisone will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• fluoxetine

  Serious - Use Alternative (2)aripiprazole and fluoxetine both increase QTc interval. Avoid or Use Alternate Drug.
  
  fluoxetine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Avoid or Use Alternate Drug.

• fluphenazine

  Monitor Closely (2)aripiprazole and fluphenazine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and fluphenazine both increase sedation. Use Caution/Monitor.Serious - Use Alternative (1)aripiprazole and fluphenazine both increase QTc interval. Avoid or Use Alternate Drug.

• flurazepam

  Monitor Closely (1)flurazepam and aripiprazole both increase sedation. Use Caution/Monitor.

• formoterol

  Monitor Closely (2)aripiprazole increases and formoterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.
  
  aripiprazole and formoterol both increase QTc interval. Use Caution/Monitor.

• fosamprenavir

  Monitor Closely (1)fosamprenavir will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• foscarnet

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

• fosphenytoin

  Monitor Closely (1)fosphenytoin will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• fostemsavir

  Monitor Closely (1)aripiprazole and fostemsavir both increase QTc interval. Use Caution/Monitor. QTc prolongation reported with higher than recommended doses of fostemsavir.

• frovatriptan

  Monitor Closely (1)frovatriptan, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• gemifloxacin

  Monitor Closely (1)aripiprazole and gemifloxacin both increase QTc interval. Use Caution/Monitor.

• gemtuzumab

  Monitor Closely (1)aripiprazole and gemtuzumab both increase QTc interval. Use Caution/Monitor.

• gilteritinib

  Monitor Closely (1)aripiprazole and gilteritinib both increase QTc interval. Use Caution/Monitor.

• givosiran

  Serious - Use Alternative (1)givosiran will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Avoid or Use Alternate Drug. Avoid coadministration of sensitive CYP2D6 substrates with givosiran. If unavoidable, decrease the CYP2D6 substrate dosage in accordance with approved product labeling.

• glasdegib

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

• glimepiride

  Monitor Closely (1)aripiprazole, glimepiride. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• glipizide

  Monitor Closely (1)aripiprazole, glipizide. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• glyburide

  Monitor Closely (1)aripiprazole, glyburide. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• glycopyrrolate

  Monitor Closely (1)aripiprazole increases effects of glycopyrrolate by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• glycopyrrolate inhaled

  Monitor Closely (3)glycopyrrolate inhaled decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  glycopyrrolate inhaled decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of glycopyrrolate inhaled by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• goserelin

  Monitor Closely (1)aripiprazole and goserelin both increase QTc interval. Use Caution/Monitor.

• granisetron

  Monitor Closely (1)aripiprazole and granisetron both increase QTc interval. Use Caution/Monitor.

• grapefruit

  Monitor Closely (1)grapefruit will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• griseofulvin

  Monitor Closely (1)griseofulvin will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• guanfacine

  Monitor Closely (1)guanfacine, aripiprazole. Mechanism: pharmacodynamic synergism. Use Caution/Monitor. Additive hypotensive effects; potential delirium.

• haloperidol

  Monitor Closely (3)aripiprazole and haloperidol both increase QTc interval. Use Caution/Monitor.
  
  aripiprazole and haloperidol both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and haloperidol both increase sedation. Use Caution/Monitor.Minor (1)haloperidol will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• henbane

  Monitor Closely (3)henbane decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  henbane decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of henbane by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• histrelin

  Monitor Closely (1)aripiprazole and histrelin both increase QTc interval. Use Caution/Monitor.

• homatropine

  Monitor Closely (3)homatropine decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  homatropine decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of homatropine by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• hydrocodone

  Serious - Use Alternative (1)hydrocodone, aripiprazole. Either increases toxicity of the other by pharmacodynamic synergism. Avoid or Use Alternate Drug. Profound sedation, respiratory depression, coma, and death may result if coadministered. Reserve concomitant prescribing of these drugs in patients for whom other treatment options are inadequate. Limit dosages and durations to the minimum required. Monitor closely for signs of respiratory depression and sedation.

• hydrocortisone

  Monitor Closely (1)hydrocortisone will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• hydromorphone

  Monitor Closely (1)hydromorphone and aripiprazole both increase sedation. Use Caution/Monitor.

• hydroxychloroquine sulfate

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

• hydroxyzine

  Monitor Closely (2)aripiprazole and hydroxyzine both increase QTc interval. Use Caution/Monitor.
  
  hydroxyzine and aripiprazole both increase sedation. Use Caution/Monitor.

• hyoscyamine

  Monitor Closely (3)hyoscyamine decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  hyoscyamine decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of hyoscyamine by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• hyoscyamine spray

  Monitor Closely (3)aripiprazole increases effects of hyoscyamine spray by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.
  
  hyoscyamine spray decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  hyoscyamine spray decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.

• ibuprofen/famotidine

  Minor (1)ibuprofen/famotidine decreases levels of aripiprazole by unspecified interaction mechanism. Minor/Significance Unknown.

• ibutilide

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

• idelalisib

  Serious - Use Alternative (1)idelalisib will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Idelalisib is a strong CYP3A inhibitor; avoid coadministration with sensitive CYP3A substrates

• iloperidone

  Monitor Closely (3)aripiprazole and iloperidone both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and iloperidone both increase sedation. Use Caution/Monitor.
  
  iloperidone increases levels of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Iloperidone is a time-dependent CYP3A inhibitor and may lead to increased plasma levels of drugs predominantly eliminated by CYP3A4.Serious - Use Alternative (1)aripiprazole and iloperidone both increase QTc interval. Avoid or Use Alternate Drug.

• imatinib

  Minor (1)imatinib will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• imipramine

  Monitor Closely (1)aripiprazole and imipramine both increase sedation. Use Caution/Monitor.

• indacaterol, inhaled

  Monitor Closely (1)aripiprazole and indacaterol, inhaled both increase QTc interval. Use Caution/Monitor.

• indinavir

  Monitor Closely (1)indinavir will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• inotuzumab

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

• insulin aspart

  Monitor Closely (1)aripiprazole, insulin aspart. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• insulin degludec

  Monitor Closely (1)aripiprazole decreases effects of insulin degludec by Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; dose of antidiabetic agents may need adjustment and increased frequency of glucose monitoring may be required.

• insulin degludec/insulin aspart

  Monitor Closely (1)aripiprazole decreases effects of insulin degludec/insulin aspart by Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; dose of antidiabetic agents may need adjustment and increased frequency of glucose monitoring may be required.

• insulin detemir

  Monitor Closely (1)aripiprazole, insulin detemir. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• insulin glargine

  Monitor Closely (1)aripiprazole, insulin glargine. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• insulin glulisine

  Monitor Closely (1)aripiprazole, insulin glulisine. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• insulin inhaled

  Monitor Closely (1)aripiprazole decreases effects of insulin inhaled by Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; dose of antidiabetic agents may need adjustment and increased frequency of glucose monitoring may be required.

• insulin lispro

  Monitor Closely (1)aripiprazole, insulin lispro. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• insulin NPH

  Monitor Closely (1)aripiprazole, insulin NPH. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• insulin regular human

  Monitor Closely (1)aripiprazole, insulin regular human. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• ipratropium

  Monitor Closely (3)ipratropium decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  ipratropium decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of ipratropium by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• isoflurane

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

• isoniazid

  Monitor Closely (1)isoniazid will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• isoproterenol

  Monitor Closely (1)aripiprazole increases and isoproterenol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• istradefylline

  Monitor Closely (1)istradefylline will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Istradefylline 40 mg/day increased peak levels and AUC of CYP3A4 substrates in clinical trials. This effect was not observed with istradefylline 20 mg/day. Consider dose reduction of sensitive CYP3A4 substrates.

• itraconazole

  Monitor Closely (1)itraconazole will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. For aripiprazole oral formulations other than the extended-release injectable: Reduce aripiprazole dose by 50% of the usual dose when initiating concomitant therapy with a strong CYP3A4 inhibitor, and further to 25% of the usual dose in patients who are also receiving strong CYP2D6 inhibitors (e.g., paroxetine, quinidine) or who are CYP2D6 poor metabolizers. Consider reducing apixaban dose to up to 75% when combining a strong CYP3A4 inhibitor with a less potent CYP2D6 inhibitor. For extended-release injectable aripiprazole: Please refer to prescribing information.Serious - Use Alternative (1)aripiprazole and itraconazole both increase QTc interval. Avoid or Use Alternate Drug.

• ivosidenib

  Serious - Use Alternative (2)ivosidenib will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Avoid coadministration of sensitive CYP3A4 substrates with ivosidenib or replace with alternate therapies. If coadministration is unavoidable, monitor patients for loss of therapeutic effect of these drugs.
  
  aripiprazole and ivosidenib both decrease QTc interval. Avoid or Use Alternate Drug.

• ketoconazole

  Monitor Closely (1)ketoconazole will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Reduce aripiprazole oral dose by 50% of the usual dose when concomitantly using a strong CYP3A4 inhibitor, and further to 25% of the usual dose in patients who are also receiving strong CYP2D6 inhibitors (eg, paroxetine, quinidine) or who are CYP2D6 poor metabolizers. Consider dose reductions to 25% of the usual dose when combining a strong CYP3A4 inhibitor with a less potent CYP2D6 inhibitor initially and then adjusted to achieve a favorable clinical response.

• ketotifen, ophthalmic

  Monitor Closely (1)aripiprazole and ketotifen, ophthalmic both increase sedation. Use Caution/Monitor.

• lapatinib

  Monitor Closely (2)lapatinib will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  aripiprazole and lapatinib both increase QTc interval. Use Caution/Monitor.

• lasmiditan

  Monitor Closely (1)lasmiditan, aripiprazole. Either increases effects of the other by sedation. Use Caution/Monitor. Coadministration of lasmiditan and other CNS depressant drugs, including alcohol have not been evaluated in clinical studies. Lasmiditan may cause sedation, as well as other cognitive and/or neuropsychiatric adverse reactions.

• lefamulin

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

• lemborexant

  Monitor Closely (1)lemborexant, aripiprazole. Either increases effects of the other by sedation. Modify Therapy/Monitor Closely. Dosage adjustment may be necessary if lemborexant is coadministered with other CNS depressants because of potentially additive effects.

• lenvatinib

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

• letermovir

  Monitor Closely (1)letermovir increases levels of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• leuprolide

  Monitor Closely (1)aripiprazole and leuprolide both increase QTc interval. Use Caution/Monitor.

• levalbuterol

  Monitor Closely (2)aripiprazole increases and levalbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.
  
  aripiprazole and levalbuterol both increase QTc interval. Use Caution/Monitor.

• levodopa

  Serious - Use Alternative (1)aripiprazole decreases effects of levodopa by pharmacodynamic antagonism. Avoid or Use Alternate Drug.

• levodopa inhaled

  Serious - Use Alternative (1)aripiprazole decreases effects of levodopa inhaled by pharmacodynamic antagonism. Avoid or Use Alternate Drug. Atypical (2nd generation) antipsychotics inhibit dopamine D2 receptors in varying degrees (clozapine and quetiapine are lower risk). .

• levofloxacin

  Monitor Closely (1)aripiprazole and levofloxacin both increase QTc interval. Use Caution/Monitor.

• levomilnacipran

  Monitor Closely (1)levomilnacipran, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• levorphanol

  Monitor Closely (1)levorphanol and aripiprazole both increase sedation. Use Caution/Monitor.

• linezolid

  Monitor Closely (1)linezolid, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• liraglutide

  Monitor Closely (1)aripiprazole, liraglutide. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• lisdexamfetamine

  Monitor Closely (1)aripiprazole increases and lisdexamfetamine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• lisuride

  Serious - Use Alternative (1)aripiprazole decreases effects of lisuride by pharmacodynamic antagonism. Contraindicated.

• lithium

  Monitor Closely (2)lithium, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).
  
  aripiprazole and lithium both increase QTc interval. Use Caution/Monitor.

• lofepramine

  Monitor Closely (1)aripiprazole and lofepramine both increase sedation. Use Caution/Monitor.

• lofexidine

  Monitor Closely (2)aripiprazole and lofexidine both increase QTc interval. Use Caution/Monitor.
  
  aripiprazole and lofexidine both increase sedation. Use Caution/Monitor.

• lonafarnib

  Serious - Use Alternative (1)lonafarnib will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Avoid coadministration with sensitive CYP3A substrates. If coadministration unavoidable, monitor for adverse reactions and reduce CYP3A substrate dose in accordance with product labeling.

• loperamide

  Monitor Closely (1)aripiprazole and loperamide both increase QTc interval. Use Caution/Monitor.

• lopinavir

  Serious - Use Alternative (2)lopinavir will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
  
  aripiprazole and lopinavir both increase QTc interval. Avoid or Use Alternate Drug.

• loprazolam

  Monitor Closely (1)loprazolam and aripiprazole both increase sedation. Use Caution/Monitor.

• lorazepam

  Monitor Closely (1)lorazepam and aripiprazole both increase sedation. Use Caution/Monitor.

• lorcaserin

  Monitor Closely (2)lorcaserin will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor.
  
  lorcaserin, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• lorlatinib

  Monitor Closely (1)lorlatinib will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• lormetazepam

  Monitor Closely (1)lormetazepam and aripiprazole both increase sedation. Use Caution/Monitor.

• loxapine

  Monitor Closely (2)aripiprazole and loxapine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and loxapine both increase sedation. Use Caution/Monitor.

• loxapine inhaled

  Monitor Closely (2)aripiprazole and loxapine inhaled both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and loxapine inhaled both increase sedation. Use Caution/Monitor.

• lumefantrine

  Monitor Closely (2)lumefantrine will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  lumefantrine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor.

• lurasidone

  Monitor Closely (1)lurasidone, aripiprazole. Either increases toxicity of the other by Other (see comment). Use Caution/Monitor. Comment: Potential for increased CNS depressant effects when used concurrently; monitor for increased adverse effects and toxicity.

• maprotiline

  Monitor Closely (1)aripiprazole and maprotiline both increase sedation. Use Caution/Monitor.Serious - Use Alternative (1)aripiprazole and maprotiline both increase QTc interval. Avoid or Use Alternate Drug.

• maraviroc

  Minor (1)maraviroc will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• marijuana

  Monitor Closely (2)marijuana will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  aripiprazole and marijuana both increase sedation. Use Caution/Monitor.Minor (1)marijuana will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• meclizine

  Monitor Closely (3)meclizine decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  meclizine decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of meclizine by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• mefloquine

  Serious - Use Alternative (1)mefloquine increases toxicity of aripiprazole by QTc interval. Avoid or Use Alternate Drug. Mefloquine may enhance the QTc prolonging effect of high risk QTc prolonging agents.

• melatonin

  Monitor Closely (1)aripiprazole and melatonin both increase sedation. Use Caution/Monitor.

• meperidine

  Monitor Closely (2)meperidine, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).
  
  meperidine and aripiprazole both increase sedation. Use Caution/Monitor.

• meprobamate

  Monitor Closely (1)aripiprazole and meprobamate both increase sedation. Use Caution/Monitor.

• metaproterenol

  Monitor Closely (1)aripiprazole increases and metaproterenol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• metaxalone

  Monitor Closely (1)metaxalone and aripiprazole both increase sedation. Use Caution/Monitor.

• metformin

  Monitor Closely (1)aripiprazole, metformin. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• methadone

  Monitor Closely (2)methadone, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).
  
  methadone and aripiprazole both increase sedation. Use Caution/Monitor.Serious - Use Alternative (1)aripiprazole and methadone both increase QTc interval. Avoid or Use Alternate Drug.

• methamphetamine

  Monitor Closely (1)aripiprazole increases and methamphetamine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• methocarbamol

  Monitor Closely (1)methocarbamol and aripiprazole both increase sedation. Use Caution/Monitor.

• methscopolamine

  Monitor Closely (3)methscopolamine decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  methscopolamine decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of methscopolamine by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• methyldopa

  Serious - Use Alternative (1)aripiprazole decreases effects of methyldopa by pharmacodynamic antagonism. Contraindicated.

• methylenedioxymethamphetamine

  Monitor Closely (1)aripiprazole increases and methylenedioxymethamphetamine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• methylergonovine

  Monitor Closely (1)methylergonovine, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• methylphenidate

  Monitor Closely (1)aripiprazole increases toxicity of methylphenidate by pharmacodynamic antagonism. Use Caution/Monitor. Closely monitor for signs of altered clinical response to either methylphenidate or an antipsychotic when using these drugs in combination.

• methylprednisolone

  Monitor Closely (1)methylprednisolone will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• metoclopramide

  Monitor Closely (1)aripiprazole and metoclopramide both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.

• metoclopramide intranasal

  Serious - Use Alternative (2)aripiprazole, metoclopramide intranasal. Either increases effects of the other by Other (see comment). Avoid or Use Alternate Drug. Comment: Avoid use of metoclopramide intranasal or interacting drug, depending on importance of drug to patient.
  
  aripiprazole increases toxicity of metoclopramide intranasal by pharmacodynamic synergism. Avoid or Use Alternate Drug. Potential for additive effects, including increased frequency and severity of tardive dyskinesia, other extrapyramidal symptoms, and neuroleptic malignant syndrome.

• metronidazole

  Monitor Closely (1)metronidazole will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• miconazole vaginal

  Monitor Closely (1)miconazole vaginal will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• midazolam

  Monitor Closely (1)midazolam and aripiprazole both increase sedation. Use Caution/Monitor.

• midazolam intranasal

  Monitor Closely (1)midazolam intranasal, aripiprazole. Either increases effects of the other by pharmacodynamic synergism. Modify Therapy/Monitor Closely. Concomitant use of barbiturates, alcohol, or other CNS depressants may increase the risk of hypoventilation, airway obstruction, desaturation, or apnea and may contribute to profound and/or prolonged drug effect.

• midodrine

  Monitor Closely (1)aripiprazole increases and midodrine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• midostaurin

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

• mifepristone

  Monitor Closely (1)mifepristone will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. If these drugs must be used together, follow manufacturer recommendations Serious - Use Alternative (1)aripiprazole and mifepristone both increase QTc interval. Avoid or Use Alternate Drug.

• miglitol

  Monitor Closely (1)aripiprazole, miglitol. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• milnacipran

  Monitor Closely (1)milnacipran, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• mirabegron

  Monitor Closely (1)mirabegron will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor.

• mirtazapine

  Monitor Closely (2)aripiprazole and mirtazapine both increase sedation. Use Caution/Monitor.
  
  aripiprazole and mirtazapine both increase QTc interval. Use Caution/Monitor.

• mitotane

  Monitor Closely (1)mitotane decreases levels of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Mitotane is a strong inducer of cytochrome P-4503A4; monitor when coadministered with CYP3A4 substrates for possible dosage adjustments.

• modafinil

  Monitor Closely (2)modafinil will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  aripiprazole increases and modafinil decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• morphine

  Monitor Closely (1)morphine and aripiprazole both increase sedation. Use Caution/Monitor.

• motherwort

  Monitor Closely (1)aripiprazole and motherwort both increase sedation. Use Caution/Monitor.

• moxifloxacin

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

• moxonidine

  Monitor Closely (1)aripiprazole and moxonidine both increase sedation. Use Caution/Monitor.

• nabilone

  Monitor Closely (1)aripiprazole and nabilone both increase sedation. Use Caution/Monitor.

• nalbuphine

  Monitor Closely (1)nalbuphine and aripiprazole both increase sedation. Use Caution/Monitor.

• naratriptan

  Monitor Closely (1)naratriptan, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• nateglinide

  Monitor Closely (1)aripiprazole, nateglinide. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• nefazodone

  Serious - Use Alternative (1)nefazodone will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.

• nelfinavir

  Monitor Closely (1)nelfinavir will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• nevirapine

  Monitor Closely (1)nevirapine will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• nifedipine

  Monitor Closely (1)nifedipine will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• nilotinib

  Monitor Closely (1)nilotinib will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.Serious - Use Alternative (1)aripiprazole and nilotinib both increase QTc interval. Avoid or Use Alternate Drug.Minor (1)nilotinib will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• nizatidine

  Monitor Closely (1)nizatidine will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely.

• norepinephrine

  Monitor Closely (1)aripiprazole increases and norepinephrine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• nortriptyline

  Monitor Closely (2)aripiprazole and nortriptyline both increase QTc interval. Use Caution/Monitor.
  
  aripiprazole and nortriptyline both increase sedation. Use Caution/Monitor.

• octreotide

  Monitor Closely (1)aripiprazole and octreotide both increase QTc interval. Use Caution/Monitor.

• ofloxacin

  Monitor Closely (1)aripiprazole and ofloxacin both increase QTc interval. Use Caution/Monitor.

• olanzapine

  Monitor Closely (3)aripiprazole and olanzapine both increase QTc interval. Use Caution/Monitor. Limited data, including some case reports, suggest that olanzapine may be associated with a significant prolongation of the QTc interval in rare instances
  
  aripiprazole and olanzapine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and olanzapine both increase sedation. Use Caution/Monitor.

• oliceridine

  Monitor Closely (2)oliceridine, aripiprazole. Either increases toxicity of the other by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Profound sedation, respiratory depression, coma, and death may result if coadministered. Reserve concomitant prescribing of these drugs in patients for whom other treatment options are inadequate. Limit dosages and durations to the minimum required. Monitor closely for signs of respiratory depression and sedation.
  
  oliceridine, aripiprazole. Either increases toxicity of the other by pharmacodynamic synergism. Modify Therapy/Monitor Closely. Profound sedation, respiratory depression, coma, and death may result if coadministered. Reserve concomitant prescribing of these drugs in patients for whom other treatment options are inadequate. Limit dosages and durations to the minimum required. Monitor closely for signs of respiratory depression and sedation.

• olodaterol inhaled

  Monitor Closely (1)aripiprazole and olodaterol inhaled both increase QTc interval. Use Caution/Monitor.

• onabotulinumtoxinA

  Monitor Closely (3)onabotulinumtoxinA decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  onabotulinumtoxinA decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of onabotulinumtoxinA by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• ondansetron

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

• opium tincture

  Monitor Closely (1)opium tincture and aripiprazole both increase sedation. Use Caution/Monitor.

• orphenadrine

  Monitor Closely (1)orphenadrine and aripiprazole both increase sedation. Use Caution/Monitor.

• osilodrostat

  Monitor Closely (1)osilodrostat and aripiprazole both increase QTc interval. Use Caution/Monitor.

• osimertinib

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

• oxaliplatin

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

• oxazepam

  Monitor Closely (1)oxazepam and aripiprazole both increase sedation. Use Caution/Monitor.

• oxcarbazepine

  Monitor Closely (1)oxcarbazepine will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• oxybutynin

  Monitor Closely (3)oxybutynin decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  oxybutynin decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of oxybutynin by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• oxybutynin topical

  Monitor Closely (3)oxybutynin topical decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  oxybutynin topical decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of oxybutynin topical by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• oxybutynin transdermal

  Monitor Closely (3)oxybutynin transdermal decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  oxybutynin transdermal decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of oxybutynin transdermal by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• oxycodone

  Monitor Closely (1)oxycodone and aripiprazole both increase sedation. Use Caution/Monitor.

• oxymorphone

  Monitor Closely (1)oxymorphone and aripiprazole both increase sedation. Use Caution/Monitor.

• ozanimod

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

• paliperidone

  Monitor Closely (2)aripiprazole and paliperidone both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and paliperidone both increase sedation. Use Caution/Monitor.Serious - Use Alternative (1)aripiprazole and paliperidone both increase QTc interval. Avoid or Use Alternate Drug.

• pancuronium

  Monitor Closely (3)pancuronium decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  pancuronium decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of pancuronium by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• panobinostat

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

• papaveretum

  Monitor Closely (1)papaveretum and aripiprazole both increase sedation. Use Caution/Monitor.

• papaverine

  Monitor Closely (1)aripiprazole and papaverine both increase sedation. Use Caution/Monitor.

• parecoxib

  Minor (1)parecoxib will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• paroxetine

  Monitor Closely (1)paroxetine, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).Serious - Use Alternative (1)paroxetine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Avoid or Use Alternate Drug.

• pasireotide

  Monitor Closely (1)aripiprazole and pasireotide both increase QTc interval. Use Caution/Monitor.

• pazopanib

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

• peginterferon alfa 2b

  Monitor Closely (1)peginterferon alfa 2b, aripiprazole. Other (see comment). Use Caution/Monitor. Comment: When patients are administered peginterferon alpha-2b with CYP2D6 substrates, the therapeutic effect of these drugs may be altered. Peginterferon alpha-2b may increase or decrease levels of CYP2D6 substrate.

• pentamidine

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

• pentazocine

  Monitor Closely (1)pentazocine and aripiprazole both increase sedation. Use Caution/Monitor.

• pentobarbital

  Monitor Closely (2)pentobarbital will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  pentobarbital and aripiprazole both increase sedation. Use Caution/Monitor.

• perphenazine

  Monitor Closely (2)aripiprazole and perphenazine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and perphenazine both increase sedation. Use Caution/Monitor.Serious - Use Alternative (1)aripiprazole and perphenazine both increase QTc interval. Avoid or Use Alternate Drug.Minor (1)perphenazine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• phendimetrazine

  Monitor Closely (1)aripiprazole increases and phendimetrazine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• phenelzine

  Monitor Closely (1)phenelzine, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• phenobarbital

  Monitor Closely (2)phenobarbital will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  phenobarbital and aripiprazole both increase sedation. Use Caution/Monitor.

• phentermine

  Monitor Closely (1)aripiprazole increases and phentermine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• phenylephrine

  Monitor Closely (1)aripiprazole increases and phenylephrine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• phenylephrine PO

  Monitor Closely (1)aripiprazole increases and phenylephrine PO decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor. .

• phenytoin

  Monitor Closely (1)phenytoin will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• pholcodine

  Monitor Closely (1)aripiprazole and pholcodine both increase sedation. Use Caution/Monitor.

• pimavanserin

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

• pimozide

  Monitor Closely (2)aripiprazole and pimozide both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and pimozide both increase sedation. Use Caution/Monitor.Serious - Use Alternative (1)aripiprazole and pimozide both increase QTc interval. Contraindicated.

• pioglitazone

  Monitor Closely (1)aripiprazole, pioglitazone. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• pirbuterol

  Monitor Closely (1)aripiprazole increases and pirbuterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• pitolisant

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

• ponesimod

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

• posaconazole

  Monitor Closely (1)posaconazole will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.Serious - Use Alternative (1)aripiprazole and posaconazole both increase QTc interval. Contraindicated.

• pralidoxime

  Monitor Closely (3)pralidoxime decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  pralidoxime decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of pralidoxime by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• pramipexole

  Serious - Use Alternative (1)aripiprazole decreases effects of pramipexole by pharmacodynamic antagonism. Contraindicated.

• pramlintide

  Monitor Closely (1)aripiprazole, pramlintide. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• prednisone

  Monitor Closely (1)prednisone will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• primaquine

  Monitor Closely (1)aripiprazole and primaquine both increase QTc interval. Use Caution/Monitor.

• primidone

  Monitor Closely (2)primidone will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  primidone and aripiprazole both increase sedation. Use Caution/Monitor.

• procainamide

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

• procarbazine

  Monitor Closely (1)procarbazine, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• prochlorperazine

  Monitor Closely (2)aripiprazole and prochlorperazine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and prochlorperazine both increase sedation. Use Caution/Monitor.

• promethazine

  Monitor Closely (3)promethazine, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).
  
  aripiprazole and promethazine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  promethazine and aripiprazole both increase sedation. Use Caution/Monitor.

• propafenone

  Serious - Use Alternative (1)aripiprazole and propafenone both increase QTc interval. Avoid or Use Alternate Drug.Minor (1)propafenone will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• propantheline

  Monitor Closely (3)propantheline decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  propantheline decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of propantheline by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• propylhexedrine

  Monitor Closely (1)aripiprazole increases and propylhexedrine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• protriptyline

  Monitor Closely (1)aripiprazole and protriptyline both increase sedation. Use Caution/Monitor.

• quazepam

  Monitor Closely (1)quazepam and aripiprazole both increase sedation. Use Caution/Monitor.

• quetiapine

  Monitor Closely (2)aripiprazole and quetiapine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and quetiapine both increase sedation. Use Caution/Monitor.Serious - Use Alternative (1)aripiprazole and quetiapine both increase QTc interval. Avoid or Use Alternate Drug.

• quinacrine

  Minor (1)quinacrine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• quinidine

  Monitor Closely (1)quinidine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor.Serious - Use Alternative (1)aripiprazole and quinidine both increase QTc interval. Contraindicated.

• quinine

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

• quinupristin/dalfopristin

  Monitor Closely (1)quinupristin/dalfopristin will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• ramelteon

  Monitor Closely (1)aripiprazole and ramelteon both increase sedation. Use Caution/Monitor.

• ranolazine

  Serious - Use Alternative (1)aripiprazole and ranolazine both increase QTc interval. Avoid or Use Alternate Drug.Minor (1)ranolazine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• rapacuronium

  Monitor Closely (3)rapacuronium decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  rapacuronium decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of rapacuronium by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• remimazolam

  Monitor Closely (1)remimazolam, aripiprazole. Either increases toxicity of the other by sedation. Modify Therapy/Monitor Closely. Coadministration may result in profound sedation, respiratory depression, coma, and/or death. Continuously monitor vital signs during sedation and recovery period if coadministered. Carefully titrate remimazolam dose if administered with opioid analgesics and/or sedative/hypnotics.

• repaglinide

  Monitor Closely (1)aripiprazole, repaglinide. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• ribociclib

  Monitor Closely (1)ribociclib will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.Serious - Use Alternative (1)aripiprazole and ribociclib both increase QTc interval. Avoid or Use Alternate Drug.

• rifabutin

  Serious - Use Alternative (1)rifabutin will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.

• rifampin

  Serious - Use Alternative (1)rifampin will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.

• rifapentine

  Monitor Closely (1)rifapentine will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• rilpivirine

  Monitor Closely (1)aripiprazole and rilpivirine both increase QTc interval. Use Caution/Monitor.

• risperidone

  Monitor Closely (3)aripiprazole and risperidone both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and risperidone both increase sedation. Use Caution/Monitor.
  
  aripiprazole and risperidone both increase QTc interval. Use Caution/Monitor.

• ritonavir

  Monitor Closely (1)ritonavir will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.Minor (1)ritonavir will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• rocuronium

  Monitor Closely (3)rocuronium decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  rocuronium decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of rocuronium by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• rolapitant

  Monitor Closely (1)rolapitant will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor. Rolapitant may increase plasma concentrations of CYP2D6 substrates for at least 28 days following rolapitant administration.

• romidepsin

  Monitor Closely (1)aripiprazole and romidepsin both increase QTc interval. Use Caution/Monitor.

• ropinirole

  Serious - Use Alternative (1)aripiprazole decreases effects of ropinirole by pharmacodynamic antagonism. Contraindicated.

• rosiglitazone

  Monitor Closely (1)aripiprazole, rosiglitazone. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• rucaparib

  Monitor Closely (1)rucaparib will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Adjust dosage of CYP3A4 substrates, if clinically indicated.

• rufinamide

  Monitor Closely (1)rufinamide will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• safinamide

  Serious - Use Alternative (1)aripiprazole decreases effects of safinamide by pharmacodynamic antagonism. Avoid or Use Alternate Drug. Dopamine antagonists may decrease safinamide effects and exacerbate Parkinson disease symptoms.

• sage

  Minor (1)aripiprazole and sage both increase sedation. Minor/Significance Unknown.

• salmeterol

  Monitor Closely (1)aripiprazole increases and salmeterol decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• saquinavir

  Monitor Closely (1)saquinavir increases levels of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Potential for increased toxicity. Consider aripiprazole dose reduction by 50%.Serious - Use Alternative (1)aripiprazole and saquinavir both increase QTc interval. Avoid or Use Alternate Drug.

• saxagliptin

  Monitor Closely (1)aripiprazole, saxagliptin. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• scopolamine

  Monitor Closely (3)scopolamine decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  scopolamine decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of scopolamine by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• scullcap

  Monitor Closely (1)aripiprazole and scullcap both increase sedation. Use Caution/Monitor.

• secobarbital

  Monitor Closely (2)secobarbital will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  secobarbital and aripiprazole both increase sedation. Use Caution/Monitor.

• selegiline

  Monitor Closely (1)selegiline, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• selinexor

  Serious - Use Alternative (1)selinexor, aripiprazole. unspecified interaction mechanism. Avoid or Use Alternate Drug. Patients treated with selinexor may experience neurological toxicities. Avoid taking selinexor with other medications that may cause dizziness or confusion.

• selpercatinib

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

• sertraline

  Monitor Closely (2)sertraline will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor.
  
  aripiprazole and sertraline both increase QTc interval. Use Caution/Monitor.

• shepherd's purse

  Monitor Closely (1)aripiprazole and shepherd's purse both increase sedation. Use Caution/Monitor.

• siponimod

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

• sitagliptin

  Monitor Closely (1)aripiprazole, sitagliptin. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• sodium oxybate

  Serious - Use Alternative (1)aripiprazole, sodium oxybate. Either increases effects of the other by pharmacodynamic synergism. Avoid or Use Alternate Drug. Profound sedation, respiratory depression, coma, and death may result if coadministered. Reserve concomitant prescribing of these drugs in patients for whom other treatment options are inadequate. Limit dosages and durations to the minimum required. Monitor closely for signs of respiratory depression and sedation.

• sodium sulfate/?magnesium sulfate/potassium chloride

  Monitor Closely (1)sodium sulfate/?magnesium sulfate/potassium chloride increases effects of aripiprazole by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• sodium sulfate/potassium sulfate/magnesium sulfate

  Monitor Closely (1)sodium sulfate/potassium sulfate/magnesium sulfate increases effects of aripiprazole by unknown mechanism. Use Caution/Monitor. Closely monitor for evidence of enhanced CNS depression when using higher dose of magnesium sulfate together with a CNS depressant.

• solifenacin

  Monitor Closely (4)solifenacin decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  solifenacin decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of solifenacin by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.
  
  aripiprazole and solifenacin both increase QTc interval. Use Caution/Monitor.

• sorafenib

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

• sotalol

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

• St John's Wort

  Serious - Use Alternative (1)St John's Wort will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.

• stiripentol

  Monitor Closely (1)stiripentol, aripiprazole. affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Stiripentol is a CYP3A4 inhibitor and inducer. Monitor CYP3A4 substrates coadministered with stiripentol for increased or decreased effects. CYP3A4 substrates may require dosage adjustment.

• sufentanil

  Monitor Closely (1)sufentanil and aripiprazole both increase sedation. Use Caution/Monitor.

• sufentanil SL

  Serious - Use Alternative (1)sufentanil SL, aripiprazole. Either increases toxicity of the other by pharmacodynamic synergism. Avoid or Use Alternate Drug. Coadministration may result in hypotension, profound sedation, respiratory depression, coma, and death. Reserve concomitant prescribing of these drugs in patients for whom other treatment options are inadequate. Limit dosages and durations to the minimum required. Monitor closely for signs of respiratory depression and sedation.

• sumatriptan

  Monitor Closely (1)sumatriptan, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• sumatriptan intranasal

  Monitor Closely (1)sumatriptan intranasal, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• sunitinib

  Monitor Closely (1)aripiprazole and sunitinib both increase QTc interval. Use Caution/Monitor.

• tacrolimus

  Monitor Closely (1)aripiprazole and tacrolimus both increase QTc interval. Use Caution/Monitor.

• tapentadol

  Monitor Closely (1)tapentadol and aripiprazole both increase sedation. Use Caution/Monitor.

• tazemetostat

  Monitor Closely (1)tazemetostat will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• tecovirimat

  Monitor Closely (1)tecovirimat will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Tecovirimat is a weak CYP3A4 inducer. Monitor sensitive CYP3A4 substrates for effectiveness if coadministered.

• telavancin

  Monitor Closely (1)aripiprazole and telavancin both increase QTc interval. Use Caution/Monitor.

• temazepam

  Monitor Closely (1)temazepam and aripiprazole both increase sedation. Use Caution/Monitor.

• terbinafine

  Monitor Closely (1)terbinafine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Modify Therapy/Monitor Closely. Assess need to reduce dose of CYP2D6-metabolized drug.

• terbutaline

  Monitor Closely (1)aripiprazole increases and terbutaline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• tetrabenazine

  Monitor Closely (1)aripiprazole and tetrabenazine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Modify Therapy/Monitor Closely.Serious - Use Alternative (1)aripiprazole and tetrabenazine both increase QTc interval. Avoid or Use Alternate Drug.

• thioridazine

  Contraindicated (1)aripiprazole and thioridazine both increase QTc interval. Contraindicated.Monitor Closely (2)aripiprazole and thioridazine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and thioridazine both increase sedation. Use Caution/Monitor.Minor (1)thioridazine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• thiothixene

  Monitor Closely (2)aripiprazole and thiothixene both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and thiothixene both increase sedation. Use Caution/Monitor.Serious - Use Alternative (1)aripiprazole and thiothixene both increase QTc interval. Avoid or Use Alternate Drug.

• tiotropium

  Monitor Closely (3)tiotropium decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  tiotropium decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of tiotropium by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• tipranavir

  Serious - Use Alternative (1)tipranavir will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.Minor (1)tipranavir will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Minor/Significance Unknown.

• tolazamide

  Monitor Closely (1)aripiprazole, tolazamide. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• tolbutamide

  Monitor Closely (1)aripiprazole, tolbutamide. Other (see comment). Use Caution/Monitor. Comment: Atypical antipsychotics have been associated with hyperglycemia that may alter blood glucose control; monitor glucose levels closely.

• tolterodine

  Monitor Closely (3)tolterodine decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  tolterodine decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of tolterodine by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• topiramate

  Monitor Closely (2)topiramate will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
  
  aripiprazole and topiramate both increase sedation. Modify Therapy/Monitor Closely.

• toremifene

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

• tramadol

  Monitor Closely (1)tramadol and aripiprazole both increase sedation. Use Caution/Monitor.

• tranylcypromine

  Monitor Closely (1)tranylcypromine, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• trazodone

  Monitor Closely (1)aripiprazole and trazodone both increase sedation. Use Caution/Monitor.Serious - Use Alternative (1)aripiprazole and trazodone both increase QTc interval. Avoid or Use Alternate Drug.

• triazolam

  Monitor Closely (1)triazolam and aripiprazole both increase sedation. Use Caution/Monitor.

• triclabendazole

  Monitor Closely (1)aripiprazole and triclabendazole both increase QTc interval. Use Caution/Monitor.

• triclofos

  Monitor Closely (1)triclofos and aripiprazole both increase sedation. Use Caution/Monitor.

• trifluoperazine

  Monitor Closely (2)aripiprazole and trifluoperazine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and trifluoperazine both increase sedation. Use Caution/Monitor.

• trimipramine

  Monitor Closely (2)aripiprazole and trimipramine both increase sedation. Use Caution/Monitor.
  
  aripiprazole and trimipramine both increase QTc interval. Use Caution/Monitor.

• triprolidine

  Monitor Closely (1)triprolidine and aripiprazole both increase sedation. Use Caution/Monitor.

• triptorelin

  Monitor Closely (1)aripiprazole and triptorelin both increase QTc interval. Use Caution/Monitor.

• trospium chloride

  Monitor Closely (3)trospium chloride decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  trospium chloride decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of trospium chloride by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• vandetanib

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

• vardenafil

  Monitor Closely (1)aripiprazole and vardenafil both increase QTc interval. Use Caution/Monitor.

• vecuronium

  Monitor Closely (3)vecuronium decreases levels of aripiprazole by inhibition of GI absorption. Applies only to oral form of both agents. Use Caution/Monitor.
  
  vecuronium decreases levels of aripiprazole by pharmacodynamic antagonism. Use Caution/Monitor.
  
  aripiprazole increases effects of vecuronium by pharmacodynamic synergism. Use Caution/Monitor. Additive anticholinergic effects, possible hypoglycemia.

• vemurafenib

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

• venlafaxine

  Monitor Closely (2)venlafaxine, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).
  
  venlafaxine will increase the level or effect of aripiprazole by affecting hepatic enzyme CYP2D6 metabolism. Use Caution/Monitor.

• verapamil

  Monitor Closely (1)verapamil will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• vilanterol/fluticasone furoate inhaled

  Monitor Closely (1)aripiprazole and vilanterol/fluticasone furoate inhaled both increase QTc interval. Use Caution/Monitor.

• vilazodone

  Monitor Closely (1)vilazodone, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• voclosporin

  Monitor Closely (1)aripiprazole and voclosporin both increase QTc interval. Use Caution/Monitor.

• voriconazole

  Monitor Closely (1)voriconazole will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.Serious - Use Alternative (1)aripiprazole and voriconazole both increase QTc interval. Avoid or Use Alternate Drug.

• vorinostat

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

• voxelotor

  Serious - Use Alternative (1)voxelotor will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Voxelotor increases systemic exposure of sensitive CYP3A4 substrates. Avoid coadministration with sensitive CYP3A4 substrates with a narrow therapeutic index. Consider dose reduction of the sensitive CYP3A4 substrate(s) if unable to avoid.

• xylometazoline

  Monitor Closely (1)aripiprazole increases and xylometazoline decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• yohimbine

  Monitor Closely (1)aripiprazole increases and yohimbine decreases sedation. Effect of interaction is not clear, use caution. Use Caution/Monitor.

• zafirlukast

  Monitor Closely (1)zafirlukast will increase the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.

• ziconotide

  Monitor Closely (1)aripiprazole and ziconotide both increase sedation. Use Caution/Monitor.

• ziprasidone

  Monitor Closely (2)aripiprazole and ziprasidone both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and ziprasidone both increase sedation. Use Caution/Monitor.Serious - Use Alternative (1)aripiprazole and ziprasidone both increase QTc interval. Avoid or Use Alternate Drug.

• zolmitriptan

  Monitor Closely (1)zolmitriptan, aripiprazole. unspecified interaction mechanism. Use Caution/Monitor. Serotonin modulators may enhance dopamine blockade, possibly increasing the risk for neuroleptic malignant syndrome. Antipsychotics may enhance serotonergic effect of serotonin modulators, which may result in serotonin syndrome. Monitor for evidence of serotonin toxicity (eg, mental status changes, autonomic instability, and neuromuscular hyperactivity) or neuroleptic malignant syndrome (eg, hyperthermia, muscle rigidity, autonomic dysfunction).

• zotepine

  Monitor Closely (2)aripiprazole and zotepine both increase antidopaminergic effects, including extrapyramidal symptoms and neuroleptic malignant syndrome. Use Caution/Monitor.
  
  aripiprazole and zotepine both increase sedation. Use Caution/Monitor.