Dosing & Uses
Dosage Forms & Strengths
tablet, film-coated (Trileptal, generic)
- 150mg
- 300mg
- 600mg
tablet, extended-release (Oxtellar XR)
- 150mg
- 300mg
- 600mg
oral suspension (Trileptal, generic)
- 300mg/5mL
Partial Seizures
Adjunctive treatment
- Trileptal: 300 mg PO q12hr initially; may increase at weekly intervals by 600 mg/day up to 1200 mg/day
- Oxtellar XR: 600 mg PO qDay initially; may increase at weekly intervals by 600 mg/day increments to target dosage range of 1200-2400 mg qDay
Monotherapy (if converting from other AED)
- Initial: 300 mg PO q12hr; increase by 600 mg/day qWeek up to 2400 mg/day
- Reduce and withdraw concomitant antiepileptic drugs (AEDs) over 3-6 weeks while reaching maximum oxcarbazepine dose in 2-4 weeks
Monotherapy (if AED naive)
- Initial: 300 mg PO q12hr; increase by 300 mg/day q3Day to 1200 mg/day divided q12hr
Bipolar Disorder (Off-label)
300 mg/day PO initially; may titrate to 1800-2400 mg/day maximum
Diabetic Neuropathy (Off-label)
150-300 mg/day PO initially; may increase to 900-1200 mg/day (general recommendation)
Doses up to 1800 mg/day studied, with positive results
Neuralgia/Neuropathy (Off-label)
300 mg PO q8-12hr initially; may adjust dose to 400-2000 mg divided q8-12hr (maximum tolerated or effective dose)
Dosage Modifications
Strong CYP3A4 inducers or UGT inducers
- Strong CYP3A4 inducers and/or UGT inducers decrease systemic exposure to 10-monohydroxy derivative (MHD), the active metabolite
- Dosage adjustment of oxcarbazepine may be required after initiation, dosage modification, or discontinuation of such induce
- Oxtellar XR: Initiate at 900 mg qDay
Renal impairment
- There is a linear correlation between creatinine clearance (CrCl) and the renal clearance of MHD
-
Severe (CrCl <30 mL/min)
- Oxtellar XR: Administer lower starting dosage and increase, if necessary, at a slower than usual rate until the desired clinical response is achieved
- Trileptal: Decrease usual starting dose by 50% and increase slowly to achieve desired clinical response
- ESRD: Use immediate-release oxcarbazepine instead of long-acting
Hepatic impairment
- Mild-to-moderate: No dose adjustment required
- Severe: Not evaluated, and therefore is not recommended
Dosing Considerations
Conversion from immediate release to Oxtellar XR: Higher doses of Oxtellar XR may be required
Dosage Forms & Strengths
tablet, film-coated (Trileptal, generic)
- 150mg
- 300mg
- 600mg
tablet, extended-release (Oxtellar XR)
- 150mg
- 300mg
- 600mg
oral suspension (Trileptal, generic)
- 300mg/5mL
Partial Seizures (Adjunctive Treatment)
Trileptal (age 2-4 years)
- Initial: 8-10 mg/kg/day PO divided q12hr; not to exceed 600 mg/day
- <20 kg: May consider starting with 16-20 mg/kg/day; may titrate to higher dose over 2-4 weeks; not to exceed 60 mg/kg/day
Trileptal (age 4-16 years)
- Initial: 8-10 mg/kg/day PO divided q12hr; not to exceed 600 mg/day
- Target maintenance dose: May titrate to higher dose over 2 weeks to reach the following dosage ranges
- 20-29 kg: 450 mg PO q12hr
- 29.1-39 kg: 600 mg PO q12hr
- >39 kg: 900 mg PO q12hr
Oxtellar XR (age 6-17 years)
- Initial: 8-10 mg/kg PO qDay; not to exceed 600 mg/day in the first week
Target maintenance dose
- May titrate to higher dose at weekly intervals in 8-10 mg/kg/day increments (not to exceed 600 mg) to reach the following target maintenance dosage ranges over 2-3 weeks
- 20-29 kg: 900 mg PO qDay
- >29-39 kg: 1200 mg PO qDay
- >39 kg: 1800 mg PO qDay
Partial Seizures (Monotherapy)
Trileptal (age 4-16 years)
- Conversion to monotherapy in patients receiving concomitant AEDs: 8-10 mg/kg/day PO divided q12hr intially, while simultaneously reducing concomitant AEDs dose(s) over 3-6 weeks; may increase Triletpa dose qWeek by maximum increment of 10 mg/kg/day
- AED-naive: Initial 8-10 mg/kg/day PO divided q12hr; may increase q3Days by 5 mg/kg/day
Target maintenance dose
- 20-24.99 kg: 600-900 mg/day
- 25-34.99 kg: 900-1200 mg/day
- 35-44.99 kg: 900-1500 mg/day
- 45-49.99 kg: 1200-1500 mg/day
- 50-59.99 kg: 1200-1800 mg/day
- 60-69.99 kg: 1200-2100 mg/day
- 70 kg: 1500-2100 mg/day
Oxtellar XR (age 6-17 years)
- Initial: 8-10 mg/kg PO qDay; not to exceed 600 mg/day in the first week
Target maintenance dose
- May titrate to higher dose at weekly intervals in 8-10 mg/kg/day increments (not to exceed 600 mg) to reach the following target maintenance dosage ranges over 2-3 weeks
- 20-29 kg: 900 mg PO qDay
- >29-39 kg: 1200 mg PO qDay
- >39 kg: 1800 mg PO qDay
Dosage Modifications
Strong CYP3A4 inducers or UGT inducers
- Strong CYP3A4 inducers and/or UGT inducers decrease systemic exposure to 10-monohydroxy derivative (MHD), the active metabolite
- Dosage adjustment of oxcarbazepine may be required after initiation, dosage modification, or discontinuation of such induce
- Oxtellar XR: Initiate at 12-15 mg/kg qDay (not to exceed 900 mg/day in first week)
Renal impairment
- There is a linear correlation between creatinine clearance and the renal clearance of MHD (active metabolite)
- Recommendations for children with renal impairment are not available
Hepatic impairment
- Mild to moderate: No dose adjustment required
- Severe: Unknown if dosage adjustment necessary for immediate release dosage form; extended release, not recommended
Dosing Considerations
Conversion from immediate-release to Oxtellar XR: Higher doses of Oxtellar XR may be required
For extended-release dosage administration consider initial dose of 300-450 mg/day
May increase at weekly intervals to desired effect; not to exceed 2400 mg/day
Interactions
Interaction Checker
No Results
Contraindicated
Serious - Use Alternative
Significant - Monitor Closely
Minor
Contraindicated (20)
- artemether/lumefantrine
oxcarbazepine will decrease the level or effect of artemether/lumefantrine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. Coadministration with strong CYP3A4 inducers can result in decreased serum concentrations and loss of antimalarial efficacy
- cariprazine
oxcarbazepine will decrease the level or effect of cariprazine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. CYP3A4 is responsible for the formation and elimination of cariprazine's active metabolites. The effect of CYP3A4 inducers on cariprazine exposure has not been evaluated and the net effect is unclear.
- cobimetinib
oxcarbazepine will decrease the level or effect of cobimetinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. Avoid coadministration. Strong or moderate CYP3A inducers may decrease cobimetinib systemic exposure by >80% and reduce its efficacy.
- dienogest/estradiol valerate
oxcarbazepine will decrease the level or effect of dienogest/estradiol valerate by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. Women should not choose estradiol valerate/dienogest as their contraceptive while using strong CYP3A4 inducers due to potential decrease in contraceptive efficacy. Estradiol valerate/dienogest should not be used for at least 28 days after discontinuation of the inducer due to possibility of decreased contraceptive efficacy.
- doravirine
oxcarbazepine will decrease the level or effect of doravirine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. Coadministration of doravirine with a strong CYP3A inducer may decrease doravirine plasma concentrations and/or effects. Potential for loss of virologic response and possible resistance to doravirine.
- elbasvir/grazoprevir
oxcarbazepine will decrease the level or effect of elbasvir/grazoprevir by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. The therapeutic effect of elbasvir/grazoprevir may be reduced if coadministered with strong CYP3A inducers and is therefore contraindicated.
- elvitegravir/cobicistat/emtricitabine/tenofovir DF
oxcarbazepine decreases levels of elvitegravir/cobicistat/emtricitabine/tenofovir DF by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. May lead to loss of virologic response and possible resistance.
- eslicarbazepine acetate
oxcarbazepine, eslicarbazepine acetate. Either increases effects of the other by pharmacodynamic synergism. Contraindicated.
- ledipasvir/sofosbuvir
oxcarbazepine will decrease the level or effect of ledipasvir/sofosbuvir by P-glycoprotein (MDR1) efflux transporter. Contraindicated. P-gp inducers decrease sofosbuvir levels, and therefore decrease conversion to sofosbuvir's active metabolite (GS-331007) responsible for 90% of pharmacologic effect
- lumacaftor/ivacaftor
oxcarbazepine will decrease the level or effect of lumacaftor/ivacaftor by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. Strong CYP3A inducers have minimal effect on lumacaftor exposure, but decreased ivacaftor exposure (AUC) by 57%. This may reduce the effectiveness of lumacaftor/ivacaftor. Therefore, coadministration is not recommended.
- lumefantrine
oxcarbazepine will decrease the level or effect of lumefantrine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. Coadministration with strong CYP3A4 inducers can result in decreased serum concentrations and loss of antimalarial efficacy
- lurasidone
oxcarbazepine decreases levels of lurasidone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. Contraindicated.
- naloxegol
oxcarbazepine will decrease the level or effect of naloxegol by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. Use of naloxegol with strong CYP3A4 inducers is not recommended
- ombitasvir/paritaprevir/ritonavir & dasabuvir (DSC)
oxcarbazepine will decrease the level or effect of ombitasvir/paritaprevir/ritonavir & dasabuvir (DSC) by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. Strong CYP3A4 inducers may reduce partiaprevir and ritonavir levels, and therefore decreased efficacy of Viekira Pak
- panobinostat
oxcarbazepine decreases levels of panobinostat by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. Strong CYP3A4 inducers can reduce panobinostat levels by ~70% and lead to treatment failure.
- praziquantel
oxcarbazepine decreases levels of praziquantel by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. Strong CYP450 inducers significantly decrease praziquantel blood levels.
- regorafenib
oxcarbazepine, regorafenib. affecting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. Strong CYP3A4 inducers decrease regorafenib levels and increase exposure of the active metabolite M-5.
- rilpivirine
oxcarbazepine decreases levels of rilpivirine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. Contraindicated. Rilpivirine should not be co-administered with strong CYP 3A4 inducers. Potential for loss of virologic response and possible resistance to rilpivirine or to the NNRTI class.
- roflumilast
oxcarbazepine will decrease the level or effect of roflumilast by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. Coadministration not recommended; strong cytochrome P450 enzyme inducers decrease systemic exposure to roflumilast and may reduce the therapeutic effectiveness
- vandetanib
oxcarbazepine decreases levels of vandetanib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. Avoid coadministration with potent CYP3A4 inducers; these drugs reduce exposure to vandetanib by up to 40%.
Serious - Use Alternative (73)
- abemaciclib
oxcarbazepine will decrease the level or effect of abemaciclib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Coadministration of abemaciclib with strong CYP3A4 inducers reduces plasma concentration of abemaciclib and its metabolites.Coadministration of abemaciclib with strong CYP3A4 inducers reduces plasma concentration of abemaciclib and its metabolites.
- acalabrutinib
oxcarbazepine will decrease the level or effect of acalabrutinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Avoid coadministration of acalabrutinib with strong CYP3A inducers. If a strong CYP3A inducer must be used, increase acalabrutinib dose to 200 mg twice daily.
- apremilast
oxcarbazepine will decrease the level or effect of apremilast by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Coadministration with strong CYP inducers results in a significant decrease of systemic exposure of apremilast, which may result in loss of efficacy
- axitinib
oxcarbazepine decreases levels of axitinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Selection of concomitant medication with no or minimal CYP3A4 induction potential is recommended.
- bedaquiline
oxcarbazepine will decrease the level or effect of bedaquiline by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Avoid coadministration of bedaquiline with strong CYP3A4 inducers due to potential for decreased therapeutic effect
- bictegravir
oxcarbazepine will decrease the level or effect of bictegravir by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Coadministration of strong CYP3A and UGT1A1 inducers can substantially decrease bictegravir plasma concentrations. This may result in the loss of therapeutic effect and development of resistance to bictegravir. Coadministration with another anticonvulsant should be considered.
- bosutinib
oxcarbazepine decreases levels of bosutinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Strong CYP3A4 inducers decreased bosutinib plasma concentration by ~85%.
- brigatinib
oxcarbazepine will decrease the level or effect of brigatinib by affecting hepatic enzyme CYP2E1 metabolism. Avoid or Use Alternate Drug. Coadministration with strong CYP3A4 inducers may decrease brigatinib efficacy.
- cabozantinib
oxcarbazepine will decrease the level or effect of cabozantinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Avoid coadministration of cabozantinib with strong CYP3A4 inducers. If a strong CYP3A4 inducer is required, increase cabozantinib dose by 40 mg/day (Cometriq) or by 20 mg/day (Cabometyx). Resume previous dose 2-3 days after strong CYP3A4 inducer discontinued.
- ceritinib
oxcarbazepine decreases levels of ceritinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- clopidogrel
oxcarbazepine decreases effects of clopidogrel by affecting hepatic enzyme CYP2C19 metabolism. Avoid or Use Alternate Drug. Clopidogrel efficacy may be reduced by drugs that inhibit CYP2C19. Inhibition of platelet aggregation by clopidogrel is entirely due to an active metabolite. Clopidogrel is metabolized to this active metabolite in part by CYP2C19. .
- cobicistat
oxcarbazepine will decrease the level or effect of cobicistat by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Consider alternative anticonvulsant or antiretroviral therapy to avoid potential changes in exposures. If coadministration is necessary, monitor for lack or loss of virologic response.
- copanlisib
oxcarbazepine will decrease the level or effect of copanlisib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Avoid coadministration of copanlisib with strong CYP3A4 inducers.
- dabrafenib
oxcarbazepine decreases levels of dabrafenib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- deflazacort
oxcarbazepine will decrease the level or effect of deflazacort by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Avoid coadministration of deflazacort with moderate or strong CYP3A4 inducers.
- dihydroergotamine
oxcarbazepine will decrease the level or effect of dihydroergotamine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- dihydroergotamine intranasal
oxcarbazepine will decrease the level or effect of dihydroergotamine intranasal by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- dolutegravir
oxcarbazepine will decrease the level or effect of dolutegravir by increasing metabolism. Avoid or Use Alternate Drug. Avoid coadministration; insufficient data to recommend dosage adjustment
- dronedarone
oxcarbazepine will decrease the level or effect of dronedarone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- eliglustat
oxcarbazepine will decrease the level or effect of eliglustat by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Strong CYP3A inducers significantly decreases eliglustat exposure; coadministration not recommended
- elvitegravir
oxcarbazepine will decrease the level or effect of elvitegravir by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Avoid; coadministration with CYP3A inducers may result in decreased plasma concentrations of elvitegravir and/or a concomitantly administered protease inhibitor and lead to loss of therapeutic effect and to possible resistance
- ergotamine
oxcarbazepine will decrease the level or effect of ergotamine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- erythromycin base
oxcarbazepine will decrease the level or effect of erythromycin base by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- erythromycin ethylsuccinate
oxcarbazepine will decrease the level or effect of erythromycin ethylsuccinate by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- erythromycin lactobionate
oxcarbazepine will decrease the level or effect of erythromycin lactobionate by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- erythromycin stearate
oxcarbazepine will decrease the level or effect of erythromycin stearate by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- ethinylestradiol
oxcarbazepine will decrease the level or effect of ethinylestradiol by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. The efficacy of hormonal contraceptives may be reduced. Use of a nonhormonal contraceptive is recommended.
- everolimus
oxcarbazepine will decrease the level or effect of everolimus by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- fostamatinib
oxcarbazepine will decrease the level or effect of fostamatinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- ibrutinib
oxcarbazepine decreases levels of ibrutinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Strong CYP3A inducers decrease ibrutinib plasma concentrations by ~10-fold.
- idelalisib
oxcarbazepine will decrease the level or effect of idelalisib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Avoid coadministration; strong CYP3A4 inducers significantly decrease idelalisib systemic exposure
- irinotecan
oxcarbazepine will decrease the level or effect of irinotecan by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- irinotecan liposomal
oxcarbazepine will decrease the level or effect of irinotecan liposomal by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- ivabradine
oxcarbazepine will decrease the level or effect of ivabradine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Avoid coadministration of ivabradine with moderate CYP3A4 inducers.
- ivacaftor
oxcarbazepine decreases levels of ivacaftor by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Avoid coadministration with strong CYP3A4 inducers; systemic exposure of ivacaftor substantially reduced (ie, ~9-fold).
- ivosidenib
oxcarbazepine will decrease the level or effect of ivosidenib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Coadministration of ivosidenib with strong CYP3A4 inducers decreased ivosidenib plasma concentrations.
- ixazomib
oxcarbazepine will decrease the level or effect of ixazomib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Avoid coadministration of ixazomib with strong CYP3A inducers. Strong inducers have been shown to decrease ixazomib Cmax by 54% and AUC by 74%.
- lenacapavir
oxcarbazepine will decrease the level or effect of lenacapavir by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Use of lenacapavir with oxcarbazepine is not recommended. Consider use of alternative anticonvulsants.
- letermovir
oxcarbazepine will decrease the level or effect of letermovir by Other (see comment). Avoid or Use Alternate Drug. Coadministration of letermovir with UCT1A1/3 inducers is not recommended.
- lovastatin
oxcarbazepine will decrease the level or effect of lovastatin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- macimorelin
oxcarbazepine will decrease the level or effect of macimorelin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Potential for false positive test results if macimorelin and strong CYP3A4 inducers are coadministered. Discontinue strong CYP3A4 inducer, allowing for sufficient washout time, before testing.
- macitentan
oxcarbazepine will decrease the level or effect of macitentan by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Avoid coadministering macitentan with strong CYP3A4 inducers
- metoclopramide intranasal
oxcarbazepine, 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.
- midostaurin
oxcarbazepine will decrease the level or effect of midostaurin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Strong CYP3A4 inducers may decrease midostaurin concentrations resulting in reduced efficacy.
- naldemedine
oxcarbazepine will decrease the level or effect of naldemedine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Avoid coadministration with strong CYP3A4 inducers.
- neratinib
oxcarbazepine will decrease the level or effect of neratinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Avoid coadministration of neratinib with strong/moderate CYP3A4 inducers.
- netupitant/palonosetron
oxcarbazepine will decrease the level or effect of netupitant/palonosetron by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Netupitant is mainly metabolized by CYP3A4; avoid use in patients who are chronically using a strong CYP3A4 inducer
- olaparib
oxcarbazepine will decrease the level or effect of olaparib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Avoid coadministration of olaparib with strong CYP3A4 inducers.
- olopatadine intranasal
oxcarbazepine and olopatadine intranasal both increase sedation. Avoid or Use Alternate Drug. Coadministration increases risk of CNS depression, which can lead to additive impairment of psychomotor performance and cause daytime impairment.
- osimertinib
oxcarbazepine will decrease the level or effect of osimertinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Avoid concomitant use of osimertinib with strong CYP3A inducers.
- pacritinib
oxcarbazepine will decrease the level or effect of pacritinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- palbociclib
oxcarbazepine will decrease the level or effect of palbociclib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Strong CYP3A inducers decrease palbociclib plasma exposure by ~85%.
- pomalidomide
oxcarbazepine decreases levels of pomalidomide by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- ponatinib
oxcarbazepine decreases levels of ponatinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Avoid unless the coadministration outweighs the possible risk of ponatinib underexposure; monitor for signs of reduced efficacy.
- ranolazine
oxcarbazepine will decrease the level or effect of ranolazine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- rolapitant
oxcarbazepine will decrease the level or effect of rolapitant by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Long-term coadministration of strong CYP3A4 inducers with rolapitant may significantly decrease rolapitant efficacy.
- romidepsin
oxcarbazepine will decrease the level or effect of romidepsin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- sildenafil
oxcarbazepine will decrease the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Potent CYP3A4 inducers are expected to cause substantial decreases in sildenafil plasma levels
- silodosin
oxcarbazepine will decrease the level or effect of silodosin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- simvastatin
oxcarbazepine will decrease the level or effect of simvastatin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- sirolimus
oxcarbazepine will decrease the level or effect of sirolimus by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- sofosbuvir
oxcarbazepine will decrease the level or effect of sofosbuvir by P-glycoprotein (MDR1) efflux transporter. Avoid or Use Alternate Drug. P-gp inducers decrease sofosbuvir levels, and therefore decrease conversion to sofosbuvir's active metabolite (GS-331007) responsible for 90% of pharmacologic effect
- sofosbuvir/velpatasvir
oxcarbazepine will decrease the level or effect of sofosbuvir/velpatasvir by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Velpatasvir is a substrate of CYP2B6, CYP2C8, and CYP3A4. Drugs that are moderate-to-potent inducers of CYP2B6, CYP2C8, or CYP3A4 may significantly decrease velpatasvir plasma concentrations, leading to potentially reduced therapeutic effect.
- sonidegib
oxcarbazepine will decrease the level or effect of sonidegib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Avoid coadministration of sonidegib with strong or moderate CYP3A4 inducers.
- stiripentol
oxcarbazepine will decrease the level or effect of stiripentol by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. If unable to avoid coadministration of stiripentol with strong CYP3A4 inducers, increase stiripentol dose.
- tezacaftor
oxcarbazepine will decrease the level or effect of tezacaftor by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- tolvaptan
oxcarbazepine will decrease the level or effect of tolvaptan by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- trabectedin
oxcarbazepine will decrease the level or effect of trabectedin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- ulipristal
oxcarbazepine will decrease the level or effect of ulipristal by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- valbenazine
oxcarbazepine will decrease the level or effect of valbenazine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Concomitant use not recommended.
- vemurafenib
oxcarbazepine decreases levels of vemurafenib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
- venetoclax
oxcarbazepine will decrease the level or effect of venetoclax by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Avoid coadministration of venetoclax with strong or moderate CYP3A inducers. Consider alternative treatment with agents that have less CYP3A induction.
- vorapaxar
oxcarbazepine decreases levels of vorapaxar by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug.
Monitor Closely (153)
- abiraterone
oxcarbazepine decreases levels of abiraterone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Avoid coadministration of abiraterone with strong CYP3A4 inducers; if a strong CYP3A4 inducer must be used, increase abiraterone dosage frequency from once daily to twice daily.
- almotriptan
oxcarbazepine will decrease the level or effect of almotriptan by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- alprazolam
oxcarbazepine will decrease the level or effect of alprazolam by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- amiodarone
oxcarbazepine will decrease the level or effect of amiodarone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- aprepitant
oxcarbazepine will decrease the level or effect of aprepitant by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- aripiprazole
oxcarbazepine will decrease the level or effect of aripiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- atogepant
oxcarbazepine will decrease the level or effect of atogepant by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- atorvastatin
oxcarbazepine will decrease the level or effect of atorvastatin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- avanafil
oxcarbazepine will decrease the level or effect of avanafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. For patients with ED, monitor response carefully because of potential for decreased effectiveness.
- bazedoxifene/conjugated estrogens
oxcarbazepine will decrease the level or effect of bazedoxifene/conjugated estrogens by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- benzhydrocodone/acetaminophen
oxcarbazepine will decrease the level or effect of benzhydrocodone/acetaminophen by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Caution when discontinuing CYP3A4 inducers that are coadministered with benzhydrocodone (prodrug of hydrocodone); plasma concentrations of hydrocodone may increase and can result in potentially fatal respiratory depression.
- bexarotene
oxcarbazepine will decrease the level or effect of bexarotene by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- bortezomib
oxcarbazepine will decrease the level or effect of bortezomib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- brentuximab vedotin
oxcarbazepine decreases levels of brentuximab vedotin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- brexpiprazole
oxcarbazepine will decrease the level or effect of brexpiprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Double brexpiprazole dose over 1-2 weeks if administered with a strong CYP3A4 inducer.
- budesonide
oxcarbazepine will decrease the level or effect of budesonide by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- buprenorphine
oxcarbazepine will decrease the level or effect of buprenorphine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- buprenorphine buccal
oxcarbazepine will decrease the level or effect of buprenorphine buccal by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- buprenorphine subdermal implant
oxcarbazepine will decrease the level or effect of buprenorphine subdermal implant by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Monitor patients already on buprenorphine subdermal implant who require newly-initiated treatment with CYP3A4 inducer for signs and symptoms of withdrawal. If the dose of the concomitant CYP3A4 inducer cannot be reduced or discontinued, implant removal may be necessary and the patient should then be treated with a buprenorphine dosage form that permits dose adjustments. If a CYP3A4 inducer is discontinued in a patient who has been stabilized on buprenorphine, monitor the patient for overmedication.
- buprenorphine, long-acting injection
oxcarbazepine will decrease the level or effect of buprenorphine, long-acting injection by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Patients who transfer to buprenorphine long-acting injection from transmucosal buprenorphine coadministered with CYP3A4 inducers should be monitored to ensure buprenorphine plasma levels are adequate. If the buprenorphine dose is inadequate and the CYP3A4 inducer cannot be reduced or discontinued, transition the patient back to a buprenorphine formulation that permits dose adjustments.
- buspirone
oxcarbazepine will decrease the level or effect of buspirone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- cabazitaxel
oxcarbazepine will decrease the level or effect of cabazitaxel by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Coadministration of strong CYP3A4 inducers may decrease cabazitaxel concentrations. Avoid coadministration.
- calcifediol
oxcarbazepine, calcifediol. affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Drugs that stimulate microsomal hydroxylation reduce the half-life of calcifediol.
- cannabidiol
oxcarbazepine will decrease the level or effect of cannabidiol by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Consider an increase in cannabidiol dosage (based on clinical response and tolerability) when coadministered with a strong CYP3A4 inducer.
- carbamazepine
oxcarbazepine will decrease the level or effect of carbamazepine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- cenobamate
cenobamate, oxcarbazepine. Either increases effects of the other by sedation. Use Caution/Monitor.
- cilostazol
oxcarbazepine will decrease the level or effect of cilostazol by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- cinacalcet
oxcarbazepine will decrease the level or effect of cinacalcet by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- clobazam
oxcarbazepine, clobazam. Other (see comment). Use Caution/Monitor. Comment: Concomitant administration can increase the potential for CNS effects (e.g., increased sedation or respiratory depression).
- clopidogrel
oxcarbazepine decreases effects of clopidogrel by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Clopidogrel efficacy may be reduced by drugs that inhibit CYP3A4. Inhibition of platelet aggregation by clopidogrel is entirely due to an active metabolite. Clopidogrel is metabolized to this active metabolite in part by CYP3A4. .
- clozapine
oxcarbazepine will decrease the level or effect of clozapine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- colchicine
oxcarbazepine will decrease the level or effect of colchicine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- conivaptan
oxcarbazepine will decrease the level or effect of conivaptan by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- conjugated estrogens
oxcarbazepine will decrease the level or effect of conjugated estrogens by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- conjugated estrogens, vaginal
oxcarbazepine will decrease the level or effect of conjugated estrogens, vaginal by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- cortisone
oxcarbazepine will decrease the level or effect of cortisone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- crizotinib
oxcarbazepine decreases levels of crizotinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Concomitant use of strong CYP3A inducers should be avoided. .
- cyclosporine
oxcarbazepine will decrease the level or effect of cyclosporine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- daridorexant
oxcarbazepine 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
oxcarbazepine will decrease the level or effect of darifenacin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- darunavir
oxcarbazepine will decrease the level or effect of darunavir by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- dasatinib
oxcarbazepine will decrease the level or effect of dasatinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- deutetrabenazine
oxcarbazepine and deutetrabenazine both increase sedation. Use Caution/Monitor.
- dexamethasone
oxcarbazepine will decrease the level or effect of dexamethasone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- diazepam
oxcarbazepine will decrease the level or effect of diazepam by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- dichlorphenamide
dichlorphenamide and oxcarbazepine both decrease serum potassium. Use Caution/Monitor.
- difelikefalin
difelikefalin and oxcarbazepine both increase sedation. Use Caution/Monitor.
- diltiazem
oxcarbazepine will decrease the level or effect of diltiazem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- doxorubicin
oxcarbazepine will decrease the level or effect of doxorubicin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- doxorubicin liposomal
oxcarbazepine will decrease the level or effect of doxorubicin liposomal by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- dronabinol
oxcarbazepine will decrease the level or effect of dronabinol by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Dronabinol is a CYP3A4 substrate.
- efavirenz
oxcarbazepine will decrease the level or effect of efavirenz by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- eletriptan
oxcarbazepine will decrease the level or effect of eletriptan by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- erlotinib
oxcarbazepine will decrease the level or effect of erlotinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- escitalopram
oxcarbazepine will increase the level or effect of escitalopram by affecting hepatic enzyme CYP2C19 metabolism. Use Caution/Monitor.
- estradiol
oxcarbazepine will decrease the level or effect of estradiol by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- estradiol vaginal
oxcarbazepine will decrease the level or effect of estradiol vaginal by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- estrogens conjugated synthetic
oxcarbazepine will decrease the level or effect of estrogens conjugated synthetic by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- estrogens esterified
oxcarbazepine will decrease the level or effect of estrogens esterified by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- estropipate
oxcarbazepine will decrease the level or effect of estropipate by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- etonogestrel
oxcarbazepine will decrease the level or effect of etonogestrel by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- etoposide
oxcarbazepine will decrease the level or effect of etoposide by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- etravirine
oxcarbazepine will increase the level or effect of etravirine by affecting hepatic enzyme CYP2C19 metabolism. Use Caution/Monitor.
oxcarbazepine will decrease the level or effect of etravirine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. - exemestane
oxcarbazepine will decrease the level or effect of exemestane by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. For patients receiving exemestane with a potent CYP3A4 inducer the recommended dose of exemestane is 50 mg daily after a meal.
- felodipine
oxcarbazepine will decrease the level or effect of felodipine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- fentanyl
oxcarbazepine will decrease the level or effect of fentanyl by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Coadministration of fentanyl with CYP3A4 inducers could lead to a decrease in fentanyl plasma concentrations, lack of efficacy or, possibly, development of a withdrawal syndrome in a patient who has developed physical dependence to fentanyl. After stopping a CYP3A4 inducer, as the effects of the inducer decline, the fentanyl plasma concentration will increase which could increase or prolong both the therapeutic and adverse effects.
- fentanyl intranasal
oxcarbazepine will decrease the level or effect of fentanyl intranasal by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Coadministration of fentanyl with CYP3A4 inducers could lead to a decrease in fentanyl plasma concentrations, lack of efficacy or, possibly, development of a withdrawal syndrome in a patient who has developed physical dependence to fentanyl. After stopping a CYP3A4 inducer, as the effects of the inducer decline, the fentanyl plasma concentration will increase which could increase or prolong both the therapeutic and adverse effects.
- fentanyl transdermal
oxcarbazepine will decrease the level or effect of fentanyl transdermal by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Coadministration of fentanyl with CYP3A4 inducers could lead to a decrease in fentanyl plasma concentrations, lack of efficacy or, possibly, development of a withdrawal syndrome in a patient who has developed physical dependence to fentanyl. After stopping a CYP3A4 inducer, as the effects of the inducer decline, the fentanyl plasma concentration will increase which could increase or prolong both the therapeutic and adverse effects.
- fentanyl transmucosal
oxcarbazepine will decrease the level or effect of fentanyl transmucosal by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Coadministration of fentanyl with CYP3A4 inducers could lead to a decrease in fentanyl plasma concentrations, lack of efficacy or, possibly, development of a withdrawal syndrome in a patient who has developed physical dependence to fentanyl. After stopping a CYP3A4 inducer, as the effects of the inducer decline, the fentanyl plasma concentration will increase which could increase or prolong both the therapeutic and adverse effects.
- fesoterodine
oxcarbazepine will decrease the level or effect of fesoterodine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- flibanserin
oxcarbazepine will decrease the level or effect of flibanserin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Strong CYP3A4 inducers substantially decrease flibanserin systemic exposure.
- fludrocortisone
oxcarbazepine will decrease the level or effect of fludrocortisone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- fosamprenavir
oxcarbazepine will decrease the level or effect of fosamprenavir by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- fosaprepitant
oxcarbazepine will decrease the level or effect of fosaprepitant by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- fosphenytoin
oxcarbazepine will increase the level or effect of fosphenytoin by affecting hepatic enzyme CYP2C19 metabolism. Use Caution/Monitor.
- gefitinib
oxcarbazepine will decrease the level or effect of gefitinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Increase gefitinib to 500 mg daily if coadministered with a strong CYP3A4 inducer. Resume gefitinib dose at 250 mg/day 7 days after discontinuing the strong inducer.
- glecaprevir/pibrentasvir
oxcarbazepine will decrease the level or effect of glecaprevir/pibrentasvir by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Coadministration of drugs that induce CYP3A4 with glecaprevir/pibrentasvir may decrease glecaprevir/pibrentasvir plasma concentrations. Potential for loss of therapeutic effect.
- guanfacine
oxcarbazepine will decrease the level or effect of guanfacine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Strong or moderate CYP3A4 inducers significantly reduce guanfacine plasma concentrations and elimination half-life. If coadministered, more frequent dosing of the IR product may be required to achieve or maintain the desired hypotensive response. For patients with ADHD, FDA-approved labeling for ER guanfacine recommends that, if coadministered, doubling the recommended dose of guanfacine should be considered.
- hydrocodone
oxcarbazepine will decrease the level or effect of hydrocodone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Caution when discontinuing CYP3A4 inducers that are coadministered with hydrocodone; plasma concentrations of hydrocodone may increase and can result in potentially fatal respiratory depression
- hydrocortisone
oxcarbazepine will decrease the level or effect of hydrocortisone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- hydroxyprogesterone caproate
oxcarbazepine will decrease the level or effect of hydroxyprogesterone caproate by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- ifosfamide
oxcarbazepine increases toxicity of ifosfamide by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. CYP3A4 inducers may increase the metabolism of ifosfamide to its active alkylating metabolites. CYP3A4 inducers may increase the formation of the neurotoxic/nephrotoxic ifosfamide metabolite, chloroacetaldehyde. Closely monitor patients taking ifosfamide with CYP3A4 inducers for toxicities and consider dose adjustment.
- iloperidone
oxcarbazepine will decrease the level or effect of iloperidone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- imipramine
oxcarbazepine will increase the level or effect of imipramine by affecting hepatic enzyme CYP2C19 metabolism. Use Caution/Monitor.
- indinavir
oxcarbazepine will decrease the level or effect of indinavir by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- isavuconazonium sulfate
oxcarbazepine will decrease the level or effect of isavuconazonium sulfate by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- ixabepilone
oxcarbazepine will decrease the level or effect of ixabepilone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- lapatinib
oxcarbazepine will decrease the level or effect of lapatinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- levonorgestrel intrauterine
oxcarbazepine decreases levels of levonorgestrel intrauterine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- levonorgestrel oral
oxcarbazepine decreases levels of levonorgestrel oral by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- levonorgestrel oral/ethinylestradiol/ferrous bisglycinate
oxcarbazepine will decrease the level or effect of levonorgestrel oral/ethinylestradiol/ferrous bisglycinate by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. The efficacy of hormonal contraceptives may be reduced. Use an alternative method of contraception or a backup method when enzyme inducers are used with combined hormonal contraceptives (CHCs), and continue backup contraception for 28 days after discontinuing enzyme inducer to ensure contraceptive reliability.
- linagliptin
oxcarbazepine decreases levels of linagliptin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Use of alternative treatments is strongly recommended when linagliptin is to be administered with a CYP3A4 inducer.
- lopinavir
oxcarbazepine will decrease the level or effect of lopinavir by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- loratadine
oxcarbazepine will decrease the level or effect of loratadine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- maraviroc
oxcarbazepine will decrease the level or effect of maraviroc by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- mavacamten
oxcarbazepine will increase the level or effect of mavacamten by affecting hepatic enzyme CYP2C19 metabolism. Modify Therapy/Monitor Closely. Inititiation of weak CYP2C19 inhibitors may require decreased mavacamten dose.
- medroxyprogesterone
oxcarbazepine will decrease the level or effect of medroxyprogesterone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Contraceptirve failure possible. Use alternative if available.
- mestranol
oxcarbazepine will decrease the level or effect of mestranol by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- methadone
oxcarbazepine will decrease the level or effect of methadone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- methylphenidate transdermal
methylphenidate transdermal will increase the level or effect of oxcarbazepine by decreasing metabolism. Modify Therapy/Monitor Closely. Consider decreasing the dose of these drugs when given coadministered with methylphenidate. Monitor for drug toxiticities when initiating or discontinuing methylphenidate.
- methylprednisolone
oxcarbazepine will decrease the level or effect of methylprednisolone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- midazolam
oxcarbazepine will decrease the level or effect of midazolam by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- midazolam intranasal
midazolam intranasal, oxcarbazepine. Either increases toxicity 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.
- mifepristone
oxcarbazepine will decrease the level or effect of mifepristone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. CYP3A4 inducers have not been studied, coadministration not recommended by manufacturer
- nelfinavir
oxcarbazepine will decrease the level or effect of nelfinavir by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- nevirapine
oxcarbazepine will decrease the level or effect of nevirapine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- nicardipine
oxcarbazepine will decrease the level or effect of nicardipine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- nifedipine
oxcarbazepine will decrease the level or effect of nifedipine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely.
- nilotinib
oxcarbazepine will decrease the level or effect of nilotinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- nisoldipine
oxcarbazepine will decrease the level or effect of nisoldipine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- omeprazole
oxcarbazepine will increase the level or effect of omeprazole by affecting hepatic enzyme CYP2C19 metabolism. Use Caution/Monitor.
- ondansetron
oxcarbazepine will decrease the level or effect of ondansetron by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. No dosage adjustment for ondansetron is recommended for patients on these drugs.
- orlistat
orlistat decreases levels of oxcarbazepine by inhibition of GI absorption. Applies only to oral form of both agents. Modify Therapy/Monitor Closely. Risk of convulsions.
- ospemifene
oxcarbazepine decreases levels of ospemifene by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- oxycodone
oxcarbazepine decreases levels of oxycodone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- pazopanib
oxcarbazepine will decrease the level or effect of pazopanib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- phenytoin
oxcarbazepine increases levels of phenytoin by affecting hepatic enzyme CYP2C9/10 metabolism. Use Caution/Monitor. Oxcarbazepine increases levels of phenytoin at doses >1200 mg/day; monitor phenytoin levels during oxcarbazepine titration period and dosage modification; may require a decrease in phenytoin dose.
- pimavanserin
oxcarbazepine will decrease the level or effect of pimavanserin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Avoid coadministration if possible. Monitor for reduced pimavanserin efficacy. An increase in pimavanserin dosage may be needed.
- prednisone
oxcarbazepine will decrease the level or effect of prednisone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- quetiapine
oxcarbazepine will decrease the level or effect of quetiapine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- quinidine
oxcarbazepine will decrease the level or effect of quinidine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- repaglinide
oxcarbazepine will decrease the level or effect of repaglinide by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- riociguat
oxcarbazepine will decrease the level or effect of riociguat by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Data not available for dose adjustment
- ritonavir
oxcarbazepine will decrease the level or effect of ritonavir by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- rivaroxaban
oxcarbazepine will decrease the level or effect of rivaroxaban by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- saquinavir
oxcarbazepine will decrease the level or effect of saquinavir by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- sevelamer
sevelamer decreases levels of oxcarbazepine by increasing elimination. Use Caution/Monitor.
- solifenacin
oxcarbazepine will decrease the level or effect of solifenacin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- sorafenib
oxcarbazepine decreases levels of sorafenib by increasing metabolism. Use Caution/Monitor.
- sunitinib
oxcarbazepine will decrease the level or effect of sunitinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- suvorexant
oxcarbazepine will decrease the level or effect of suvorexant by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Strong CYP3A4 inducers may decrease suvorexant efficacy; if increased suvorexant dose required, do not exceed 20 mg/day
- tacrolimus
oxcarbazepine will decrease the level or effect of tacrolimus by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- tadalafil
oxcarbazepine will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Avoid combination in pulmonary HTN patients. For patients with ED, monitor response to tadalafil carefully because of potential for decreased effectiveness.
- tamoxifen
oxcarbazepine will decrease the level or effect of tamoxifen by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- tasimelteon
oxcarbazepine will decrease the level or effect of tasimelteon by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Avoid coadministration of tasimelteon with strong CYP3A4 inducers
- tazemetostat
oxcarbazepine will decrease the level or effect of tazemetostat by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- temsirolimus
oxcarbazepine will decrease the level or effect of temsirolimus by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- theophylline
oxcarbazepine will decrease the level or effect of theophylline by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- tinidazole
oxcarbazepine will decrease the level or effect of tinidazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- tipranavir
oxcarbazepine will decrease the level or effect of tipranavir by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- tofacitinib
oxcarbazepine will decrease the level or effect of tofacitinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Loss of, or decreased response to tofacitinib may occur when coadministered with potent CYP3A4 inducers
- tolterodine
oxcarbazepine will decrease the level or effect of tolterodine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- toremifene
oxcarbazepine decreases levels of toremifene by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. CYP3A4 inducers increase rate of toremifene metabolism, lowering the steady-state concentration in serum.
- tramadol
oxcarbazepine will decrease the level or effect of tramadol by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Decreased AUC of tramadol and the active metabolite (O-desmethyltramadol) when coadministered with strong CYP3A4 and CYP2B6 inducers
- trazodone
oxcarbazepine will decrease the level or effect of trazodone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- triamcinolone acetonide injectable suspension
oxcarbazepine will decrease the level or effect of triamcinolone acetonide injectable suspension by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- triazolam
oxcarbazepine will decrease the level or effect of triazolam by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- ubrogepant
oxcarbazepine will decrease the level or effect of ubrogepant by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Dose adjustment is recommended with concomitant use of ubrogepant and moderate and weak CYP3A4 inducers. (see Dosage Modifications)
- vardenafil
oxcarbazepine will decrease the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- verapamil
oxcarbazepine will decrease the level or effect of verapamil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.
- vilazodone
oxcarbazepine decreases levels of vilazodone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Consider increasing vilazodone dose up to 2-fold (not to exceed 80 mg/day) when coadministered with strong CYP3A4 inducers for >14 days.
- voriconazole
oxcarbazepine will decrease the level or effect of voriconazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely.
- vortioxetine
oxcarbazepine increases levels of vortioxetine by increasing metabolism. Modify Therapy/Monitor Closely. Consider increasing the vortioxetine dose when coadministered with strong CYP inducers for >14 days; not to exceed 3 times original vortioxetine dose.
Minor (82)
- acetaminophen
oxcarbazepine decreases levels of acetaminophen by increasing metabolism. Minor/Significance Unknown. Enhanced metabolism incr levels of hepatotoxic metabolites.
- acetaminophen IV
oxcarbazepine decreases levels of acetaminophen IV by increasing metabolism. Minor/Significance Unknown. Enhanced metabolism incr levels of hepatotoxic metabolites.
- acetaminophen rectal
oxcarbazepine decreases levels of acetaminophen rectal by increasing metabolism. Minor/Significance Unknown. Enhanced metabolism incr levels of hepatotoxic metabolites.
- alfentanil
oxcarbazepine will decrease the level or effect of alfentanil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- alfuzosin
oxcarbazepine will decrease the level or effect of alfuzosin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- alosetron
oxcarbazepine will decrease the level or effect of alosetron by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- amitriptyline
oxcarbazepine will increase the level or effect of amitriptyline by affecting hepatic enzyme CYP2C19 metabolism. Minor/Significance Unknown.
oxcarbazepine will decrease the level or effect of amitriptyline by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown. - amlodipine
oxcarbazepine will decrease the level or effect of amlodipine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- armodafinil
oxcarbazepine will decrease the level or effect of armodafinil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- atazanavir
oxcarbazepine will decrease the level or effect of atazanavir by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- atracurium
oxcarbazepine decreases effects of atracurium by pharmacodynamic antagonism. Minor/Significance Unknown.
- biotin
oxcarbazepine decreases levels of biotin by unspecified interaction mechanism. Minor/Significance Unknown. Biotin supplementation may be necessary.
- bosentan
oxcarbazepine will decrease the level or effect of bosentan by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- carbamazepine
carbamazepine decreases levels of oxcarbazepine by increasing metabolism. Minor/Significance Unknown.
- cevimeline
oxcarbazepine will decrease the level or effect of cevimeline by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- cimetidine
oxcarbazepine will increase the level or effect of cimetidine by affecting hepatic enzyme CYP2C19 metabolism. Minor/Significance Unknown.
- cisatracurium
oxcarbazepine decreases effects of cisatracurium by pharmacodynamic antagonism. Minor/Significance Unknown.
- clarithromycin
oxcarbazepine will decrease the level or effect of clarithromycin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- clomipramine
oxcarbazepine will decrease the level or effect of clomipramine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- cyanocobalamin
oxcarbazepine decreases levels of cyanocobalamin by inhibition of GI absorption. Applies only to oral form of both agents. Minor/Significance Unknown.
- dapsone
oxcarbazepine will decrease the level or effect of dapsone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- dexmethylphenidate
dexmethylphenidate increases effects of oxcarbazepine by decreasing metabolism. Minor/Significance Unknown.
- diazepam
oxcarbazepine will increase the level or effect of diazepam by affecting hepatic enzyme CYP2C19 metabolism. Minor/Significance Unknown.
- disopyramide
oxcarbazepine will decrease the level or effect of disopyramide by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- docetaxel
oxcarbazepine will decrease the level or effect of docetaxel by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- donepezil
oxcarbazepine will decrease the level or effect of donepezil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- doxycycline
oxcarbazepine decreases levels of doxycycline by increasing metabolism. Minor/Significance Unknown.
- dutasteride
oxcarbazepine will decrease the level or effect of dutasteride by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- eplerenone
oxcarbazepine will decrease the level or effect of eplerenone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- ethotoin
ethotoin decreases levels of oxcarbazepine by increasing metabolism. Minor/Significance Unknown.
- eucalyptus
oxcarbazepine will decrease the level or effect of eucalyptus by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- finasteride
oxcarbazepine will decrease the level or effect of finasteride by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- fosphenytoin
fosphenytoin decreases levels of oxcarbazepine by increasing metabolism. Minor/Significance Unknown.
- galantamine
oxcarbazepine will decrease the level or effect of galantamine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- imatinib
oxcarbazepine will decrease the level or effect of imatinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- imipramine
oxcarbazepine will decrease the level or effect of imipramine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- isradipine
oxcarbazepine will decrease the level or effect of isradipine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- itraconazole
oxcarbazepine will decrease the level or effect of itraconazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- ketoconazole
oxcarbazepine will decrease the level or effect of ketoconazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- lansoprazole
oxcarbazepine will increase the level or effect of lansoprazole by affecting hepatic enzyme CYP2C19 metabolism. Minor/Significance Unknown.
- levocarnitine
oxcarbazepine decreases levels of levocarnitine by unspecified interaction mechanism. Minor/Significance Unknown.
- levoketoconazole
oxcarbazepine will decrease the level or effect of levoketoconazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- levothyroxine
oxcarbazepine decreases levels of levothyroxine by increasing metabolism. Minor/Significance Unknown.
- liothyronine
oxcarbazepine decreases levels of liothyronine by increasing metabolism. Minor/Significance Unknown.
- montelukast
oxcarbazepine will decrease the level or effect of montelukast by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- nimodipine
oxcarbazepine will decrease the level or effect of nimodipine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- nitrendipine
oxcarbazepine will decrease the level or effect of nitrendipine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- onabotulinumtoxinA
oxcarbazepine decreases effects of onabotulinumtoxinA by pharmacodynamic antagonism. Minor/Significance Unknown.
- oxybutynin
oxcarbazepine will decrease the level or effect of oxybutynin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- paclitaxel
oxcarbazepine will decrease the level or effect of paclitaxel by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- paclitaxel protein bound
oxcarbazepine will decrease the level or effect of paclitaxel protein bound by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- pancuronium
oxcarbazepine decreases effects of pancuronium by pharmacodynamic antagonism. Minor/Significance Unknown.
- pantoprazole
oxcarbazepine will decrease the level or effect of pantoprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown. Unclear on net effect of pantoprazole action due to opposing effects by CYP450 enzymes; monitor
oxcarbazepine will increase the level or effect of pantoprazole by affecting hepatic enzyme CYP2C19 metabolism. Minor/Significance Unknown. Unclear on net effect of pantoprazole action due to opposing effects by CYP450 enzymes; monitor - parecoxib
oxcarbazepine will decrease the level or effect of parecoxib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- perampanel
perampanel increases levels of oxcarbazepine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- phenobarbital
phenobarbital decreases levels of oxcarbazepine by increasing metabolism. Minor/Significance Unknown.
- phenytoin
phenytoin decreases levels of oxcarbazepine by increasing metabolism. Minor/Significance Unknown.
- pimozide
oxcarbazepine will decrease the level or effect of pimozide by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- pioglitazone
oxcarbazepine will decrease the level or effect of pioglitazone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- propafenone
oxcarbazepine will decrease the level or effect of propafenone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- quinine
oxcarbazepine will decrease the level or effect of quinine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- rabeprazole
oxcarbazepine will decrease the level or effect of rabeprazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- ramelteon
oxcarbazepine will decrease the level or effect of ramelteon by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- rapacuronium
oxcarbazepine decreases effects of rapacuronium by pharmacodynamic antagonism. Minor/Significance Unknown.
- rocuronium
oxcarbazepine decreases effects of rocuronium by pharmacodynamic antagonism. Minor/Significance Unknown.
- sage
sage decreases effects of oxcarbazepine by pharmacodynamic antagonism. Minor/Significance Unknown. Theoretical interaction; some species of sage may cause convulsions.
- saxagliptin
oxcarbazepine will decrease the level or effect of saxagliptin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- serdexmethylphenidate/dexmethylphenidate
serdexmethylphenidate/dexmethylphenidate increases effects of oxcarbazepine by decreasing metabolism. Minor/Significance Unknown.
- succinylcholine
oxcarbazepine decreases effects of succinylcholine by pharmacodynamic antagonism. Minor/Significance Unknown.
- sufentanil
oxcarbazepine will decrease the level or effect of sufentanil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- thyroid desiccated
oxcarbazepine decreases levels of thyroid desiccated by increasing metabolism. Minor/Significance Unknown.
- vecuronium
oxcarbazepine decreases effects of vecuronium by pharmacodynamic antagonism. Minor/Significance Unknown.
- verapamil
verapamil decreases levels of oxcarbazepine by increasing metabolism. Minor/Significance Unknown.
- vinblastine
oxcarbazepine will decrease the level or effect of vinblastine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- vincristine
oxcarbazepine will decrease the level or effect of vincristine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- vincristine liposomal
oxcarbazepine will decrease the level or effect of vincristine liposomal by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- vinorelbine
oxcarbazepine will decrease the level or effect of vinorelbine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- voriconazole
oxcarbazepine will increase the level or effect of voriconazole by affecting hepatic enzyme CYP2C19 metabolism. Minor/Significance Unknown.
- zaleplon
oxcarbazepine will decrease the level or effect of zaleplon by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- ziprasidone
oxcarbazepine will decrease the level or effect of ziprasidone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- zolpidem
oxcarbazepine will decrease the level or effect of zolpidem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
- zonisamide
oxcarbazepine will decrease the level or effect of zonisamide by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown.
Adverse Effects
>10%
Dizziness (30-50%)
Diplopia (30-50%)
Headache (26-30%)
Nausea/vomiting (26-30%)
Nystagmus (26-30%)
Somnolence (26-30%)
Ataxia (10-30%)
Abnormal gait (16-20%)
Tremor (16-20%)
Abdominal pain (11-15%)
Fatigue (11-15%)
Vertigo (11-15%)
Vision abnormalities (11-15%)
1-10%
Dyspepsia (5-6%)
Rash (4%)
Insomnia (2-4%)
Abnormal thinking (<4%)
Hyponatremia (1-3%)
Muscle weakness (1-2%)
Hypotension (<2%)
Speech disorder (1%)
Asthenia
Postmarketing Reports
Angioedema
Anaphylaxis
Multiorgan immune hypersensitivity reaction
Hematic and lymphatic systems: Bone marrow depression, agranulocytosis, aplastic anemia, pancytopenia, neutropenia
Digestive system: Pancreatitis and/or lipase and/or amylase increased
Metabolism and nutrition disorders: Folic acid deficiency, hypothyroidism
Skin and appendages: Erythema multiforme, Stevens-Johnson syndrome, toxic epidermal necrolysis
Skeletal: Fractures, decreased bone mineral, osteoporosis
Body as a whole: Multiorgan hypersensitivity disorders characterized by features such as rash, fever, lymphadenopathy, abnormal liver function tests, eosinophilia, and arthralgia
Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS)/Multi-Organ Hypersensitivity
Warnings
Contraindications
Known hypersensitivity to oxcarbazepine or any of its components, or to eslicarbazepine acetate
Cautions
Hypersensitivity reactions may occur; if signs or symptoms of hypersensitivity develop, discontinue treatment immediately
Antiepileptic drugs (AEDs) increase risk of suicidal thoughts or behavior in patients receiving therapy; monitor for emergence or worsening of depression, suicidal thoughts or behavior, and/or any unusual changes in mood or behavior
Caution performing tasks that require mental alertness
Potentially fatal skin reactions may occur (eg, Stevens-Johnson syndrome)
Discontinue if dermatological reactions occur
Significant hyponatremia and syndrome of inappropriate antidiuretic hormone secretion (SIADH) may develop (monitor especially in patients at risk of hyponatremia)
Pancytopenia, agranulocytosis, and leukopenia reported rarely
Hypothyroidism reported; monitor thyroid function, especially in children; discontinuation of therapy associated with return of normal thyroxine levels
Patients carrying the HLA-B*1502 allele may be at increased risk for Stevens-Johnson syndrome and epidermal necrolysis
Half-life of primary active metabolite is prolonged 3- to 4-fold and AUC is doubled in patients with CrCl <30 mL/min; adjust dose in these patients
Exacerbation of or new onset of primary generalized seizures reported; risk of aggravation of primary generalized seizures is seen especially in children but may also occur in adults; discontinue therapy if it occurs
Do not discontinue anticonvulsants abruptly; withdraw gradually because of risk of increased seizure frequency and status epilepticus; if withdrawal is needed because of serious adverse event, rapid discontinuation can be considered
Long term
- Associated with decreased mineral density, osteopenia, osteoporosis, and fractures
- CNS-related adverse effects including difficulty with concentration, psychomotor slowing, speech or language problems, somnolence or fatigue, reported
- Coordination abnormalities, including ataxia and gait disturbances
Pregnancy effects
- Plasma levels of active metabolite of oxcarbazepine, the 10¬ monohydroxy derivative (MHD), may gradually decrease throughout pregnancy
- Recommend patients be monitored carefully during pregnancy
- Close monitoring should continue through postpartum period because MHD levels may return after delivery (see Pregnancy)
DRESS
- Drug reaction with eosinophilia and systemic symptoms (DRESS), also known as multi-organ hypersensitivity, reported
- Some of these events have been fatal or life-threatening
- DRESS typically, although not exclusively, presents with fever, rash, and/or lymphadenopathy, in association with other organ system involvement (eg, hepatitis, nephritis, hematologic abnormalities, myocarditis, or myositis), sometimes resembling an acute viral infection
Drug interactions overview
- Phenytoin levels have been shown to increase with concomitant use of oxcarbazepine at doses >1200 mg/day; therefore, it is recommended that the plasma levels of phenytoin be monitored during oxcarbazepine titration and dosage modification; a dose reduction of phenytoin may be required
- Strong CYP450 enzymes and/or UGT inducers (eg, rifampin, carbamazepine, phenytoin and phenobarbital) have been shown to decrease the plasma/serum levels of MHD, the active metabolite of oxcarbazepine (25% to 49%) (see Dosage Considerations)
- Concurrent use of oxcarbazepine with hormonal contraceptives may render these contraceptives less effective
Pregnancy & Lactation
Pregnancy
There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to AEDs, such as TRILEPTAL, during pregnancy. Encourage women who are taking TRILEPTAL during pregnancy to enroll in the North American Antiepileptic Drug (NAAED) Pregnancy Registry by calling 1-888-233-2334 or visiting http://www.aedpregnancyregistry.org/
No adequate and well-controlled clinical studies of oxcarbazepine in pregnant women; however, oxcarbazepine is closely related structurally to carbamazepine, which is considered to be teratogenic in humans
Data on a limited number of pregnancies from pregnancy registries suggest congenital malformations associated with oxcarbazepine monotherapy use (eg, craniofacial defects such as oral clefts and cardiac malformations such as ventricular septal defects)
Use of drug with hormonal contraceptives containing ethinylestradiol or levonorgestrel associated with decreased plasma concentrations of these hormones and may result in a failure of therapeutic effect of oral contraceptive drug; advise women of reproductive potential taking drug who are using a contraceptive containing ethinylestradiol or levonorgestrel to use additional or alternative non-hormonal birth control
Use during pregnancy only if the potential benefit justifies the potential risk to the fetus
Oxcarbazepine levels may decrease during pregnancy
Lactation
Oxcarbazepine and its active metabolite (MHD) are excreted in human milk
A milk-to-plasma concentration ratio of 0.5 was found for oxcarbazepine and MHD
Owing to potential serious adverse reactions to oxcarbazepine in nursing infants, developmental and health benefits of breastfeeding should be considered along with mother’s clinical need for drug and any potential adverse effects on breastfed infant from drug or from underlying maternal
Pregnancy Categories
A: Generally acceptable. Controlled studies in pregnant women show no evidence of fetal risk.
B: May be acceptable. Either animal studies show no risk but human studies not available or animal studies showed minor risks and human studies done and showed no risk. C: Use with caution if benefits outweigh risks. Animal studies show risk and human studies not available or neither animal nor human studies done. D: Use in LIFE-THREATENING emergencies when no safer drug available. Positive evidence of human fetal risk. X: Do not use in pregnancy. Risks involved outweigh potential benefits. Safer alternatives exist. NA: Information not available.Pharmacology
Mechanism of Action
MHD stabilizes neuronal membranes by blocking Na+ channels; this may inhibit repetitive firing and may decrease the propagation of synaptic impulses; may also increase potassium conductance and modulate the activity of high-voltage activated calcium channels
Absorption
Bioavailability: Complete
Peak serum time: 4-6 hr
Distribution
Protein bound: 40% (MHD); primarily bound to albumin
Vd: 49 L
Metabolism
Rapidly reduces by cytosolic enzymes in the liver to active metabolite
Metabolites (active): MHD
Enzymes induced: CYP3A4
Enzymes inhibited: CYP2C19
Elimination
Half-life: 2 hr (immediate-release parent drug); 9 hr (immediate-release derivative MHD); 7-11 hr (extended-release parent drug); 9-11 hr (extended-release derivative MHD)
Excretion: Urine (>95%)
Administration
Oral Suspension Preparation
Shake bottle well and prepare dose immediately afterwards
Withdraw prescribed dose from bottle using oral syringes provided
Mix in a small glass of water just prior to administration or, alternatively, may be swallowed directly from the syringe
After each use, close the bottle and rinse the syringe with warm water and allow it to dry thoroughly
Oral Administration
Take with or without food
Oral suspension and film-coated tablets may be interchanged at equal doses
Storage
Oral suspension
- Store at room temperature, 25°C (77°F); excursions permitted to 15-30°C (59-86°F)
- Use within 7 weeks of first opening bottle
Tablets
- Store at room temperature, 25°C (77°F); excursions permitted to 15-30°C (59-86°F)
Images
| BRAND | FORM. | UNIT PRICE | PILL IMAGE |
|---|---|---|---|
| Oxtellar XR oral - | 300 mg tablet |  | |
| Oxtellar XR oral - | 150 mg tablet |  | |
| Oxtellar XR oral - | 600 mg tablet |  | |
| Trileptal oral - | 300 mg/5 mL (60 mg/mL) suspension |  | |
| Trileptal oral - | 600 mg tablet |  | |
| Trileptal oral - | 150 mg tablet |  | |
| Trileptal oral - | 300 mg tablet |  | |
| oxcarbazepine oral - | 300 mg tablet |  | |
| oxcarbazepine oral - | 300 mg tablet |  | |
| oxcarbazepine oral - | 150 mg tablet |  | |
| oxcarbazepine oral - | 150 mg tablet |  | |
| oxcarbazepine oral - | 300 mg/5 mL (60 mg/mL) suspension |  | |
| oxcarbazepine oral - | 600 mg tablet |  | |
| oxcarbazepine oral - | 600 mg tablet |  | |
| oxcarbazepine oral - | 300 mg tablet |  | |
| oxcarbazepine oral - | 150 mg tablet |  | |
| oxcarbazepine oral - | 150 mg tablet |  | |
| oxcarbazepine oral - | 300 mg/5 mL (60 mg/mL) suspension |  | |
| oxcarbazepine oral - | 600 mg tablet |  | |
| oxcarbazepine oral - | 300 mg/5 mL (60 mg/mL) suspension |  | |
| oxcarbazepine oral - | 300 mg/5 mL (60 mg/mL) suspension |  | |
| oxcarbazepine oral - | 600 mg tablet |  | |
| oxcarbazepine oral - | 300 mg/5 mL (60 mg/mL) suspension |  |
Copyright © 2010 First DataBank, Inc.
Patient Handout
oxcarbazepine oral
OXCARBAZEPINE EXTENDED-RELEASE - ORAL
(OX-kar-BAZ-e-peen)
COMMON BRAND NAME(S): Oxtellar
USES: Oxcarbazepine is used with other medications to treat seizure disorders (epilepsy).
HOW TO USE: Read the Medication Guide provided by your pharmacist before you start using oxcarbazepine and each time you get a refill. If you have any questions, consult your doctor or pharmacist.Take this medication by mouth without food as directed by your doctor, usually once daily. It is very important to take this medication on an empty stomach, at least 1 hour before or 2 hours after food.Swallow whole. Do not crush or chew extended-release tablets. Doing so can release all of the drug at once, increasing the risk of side effects.The dosage is based on your medical condition, response to treatment, and other medications you may be taking. Children's dosage is also based on weight. To reduce your risk of side effects, your doctor may direct you to start this medication at a low dose and gradually increase your dose. Follow your doctor's instructions carefully. Be sure to tell your doctor and pharmacist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).It is important to take all doses on time to keep the level of medication in your blood constant. Take doses at evenly spaced intervals. Do not skip doses.Do not suddenly stop taking this drug without your doctor's approval since seizures may reoccur.Tell your doctor if seizure control worsens.
SIDE EFFECTS: Dizziness, drowsiness, fatigue, nausea, vomiting, or headache may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.A small number of people who take anticonvulsants for any condition (such as seizure, bipolar disorder, pain) may experience depression, suicidal thoughts/attempts, or other mental/mood problems. Tell your doctor right away if you or your family/caregiver notice any unusual/sudden changes in your mood, thoughts, or behavior including signs of depression, suicidal thoughts/attempts, thoughts about harming yourself.Tell your doctor right away if you have any serious side effects, including: loss of coordination, vision changes (such as double vision), rapid/uncontrollable eye movements, shaking (tremor), easy bleeding/bruising, unusual tiredness.Get medical help right away if you have any very serious side effects, including: signs of infection (such as fever, swollen lymph nodes, sore throat that doesn't go away, cough), symptoms of low sodium level (severe nausea, extreme drowsiness, confusion, seizures).Oxcarbazepine may rarely cause very serious (possibly fatal) skin reactions. Some people in certain ethnic groups (including people of Asian/South Asian descent) are at greater risk. Your doctor may order a blood test to measure your risk before prescribing this medication. If the blood test shows you are at greater risk, discuss the risks and benefits of oxcarbazepine and other treatment choices with your doctor. Such skin reactions have developed mostly within the first few months of treatment. Get medical help right away if you develop any of the following symptoms: skin rash/blisters/peeling, itching, or swelling. Ask your doctor or pharmacist for more details.A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.In the US -Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
PRECAUTIONS: Before taking oxcarbazepine, tell your doctor or pharmacist if you are allergic to it; or to carbamazepine; or to eslicarbazepine; or to other anti-seizure medications (such as fosphenytoin, phenobarbital, phenytoin, primidone); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.Before using this medication, tell your doctor or pharmacist your medical history, especially of: kidney disease, mineral imbalance (low level of sodium in the blood).This drug may make you dizzy or drowsy. Alcohol or marijuana (cannabis) can make you more dizzy or drowsy. Do not drive, use machinery, or do anything that needs alertness until you can do it safely. Limit alcoholic beverages. Talk to your doctor if you are using marijuana (cannabis).Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).During pregnancy, this medication should be used only when clearly needed. It may harm an unborn baby. However, since untreated seizures are a serious condition that can harm both a pregnant woman and her unborn baby, do not stop taking this medication unless directed by your doctor. If you are planning pregnancy, become pregnant, or think you may be pregnant, immediately discuss with your doctor the benefits and risks of using this medication during pregnancy. Since birth control pills, patches, implants, and injections may not work if taken with this medication (see also Drug Interactions section), discuss reliable forms of birth control with your doctor.This medication passes into breast milk but is unlikely to harm a nursing infant. Consult your doctor before breast-feeding.
DRUG INTERACTIONS: Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.A product that may interact with this drug is: orlistat.This medication can speed up or slow down the removal of other medications from your body, which may affect how they work. Examples of affected drugs include cabotegravir, cobicistat, elvitegravir, sofosbuvir, rilpivirine, among others.This medication may decrease the effectiveness of hormonal birth control such as pills, patch, or ring. This could cause pregnancy. Discuss with your doctor or pharmacist if you should use additional reliable birth control methods while using this medication. Also tell your doctor if you have any new spotting or breakthrough bleeding, because these may be signs that your birth control is not working well.Tell your doctor or pharmacist if you are taking other products that cause drowsiness including alcohol, marijuana (cannabis), antihistamines (such as cetirizine, diphenhydramine), drugs for sleep or anxiety (such as alprazolam, diazepam, zolpidem), muscle relaxants (such as carisoprodol, cyclobenzaprine), and opioid pain relievers (such as codeine, hydrocodone).Check the labels on all your medicines (such as allergy or cough-and-cold products) because they may contain ingredients that cause drowsiness. Ask your pharmacist about using those products safely.Oxcarbazepine is very similar to eslicarbazepine. Do not use medications containing eslicarbazepine while using oxcarbazepine.
OVERDOSE: If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center.
NOTES: Do not share this medication with others.Lab and/or medical tests (such as sodium levels, complete blood count) should be done while you are taking this medication. Keep all medical and lab appointments. Consult your doctor for more details.
MISSED DOSE: If you miss a dose, use it as soon as you remember. If it is near the time of the next dose, skip the missed dose. Use your next dose at the regular time. Do not double the dose to catch up.
STORAGE: Store at room temperature away from light and moisture. Do not store in the bathroom. Keep all medications away from children and pets.Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.
MEDICAL ALERT: Your condition can cause complications in a medical emergency. For information about enrolling in MedicAlert, call 1-888-633-4298 (US) or 1-800-668-1507 (Canada).
Information last revised December 2022. Copyright(c) 2023 First Databank, Inc.
IMPORTANT: HOW TO USE THIS INFORMATION: This is a summary and does NOT have all possible information about this product. This information does not assure that this product is safe, effective, or appropriate for you. This information is not individual medical advice and does not substitute for the advice of your health care professional. Always ask your health care professional for complete information about this product and your specific health needs.
Formulary
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To view formulary information first create a list of plans. Your list will be saved and can be edited at any time.
Adding plans allows you to:
- View the formulary and any restrictions for each plan.
- Manage and view all your plans together – even plans in different states.
- Compare formulary status to other drugs in the same class.
- Access your plan list on any device – mobile or desktop.
