Drug interactions
Idelalisib + Oxcarbazepine
Severity: Major
Idelalisib and Oxcarbazepine: major interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Oxcarbazepine may reduce idelalisib exposure through CYP3A4 induction. Idelalisib labeling advises avoiding strong CYP3A inducers, and oxcarbazepine is a weaker inducer. Reduced exposure may compromise anticancer efficacy.
What this interaction means in plain words
Idelalisib and Oxcarbazepine can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Idelalisib belongs to Oncology; Oxcarbazepine belongs to Central Nervous System.
Why it happens
Oxcarbazepine induces CYP3A4, increasing idelalisib clearance.
What to do
Prefer a non-inducing anticonvulsant such as levetiracetam. If combined, monitor disease response closely.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Oxcarbazepine
- Cabotegravir + Oxcarbazepine Contraindicated
- Oxcarbazepine + Rilpivirine Contraindicated
- Artemether / lumefantrine + Oxcarbazepine Major
- Atazanavir + Oxcarbazepine Major
- Benzhydrocodone / acetaminophen + Oxcarbazepine Major
- Bictegravir + Oxcarbazepine Major
Other interactions of Idelalisib
- Alfuzosin + Idelalisib Contraindicated
- Cisapride + Idelalisib Contraindicated
- Dihydroergotamine + Idelalisib Contraindicated
- Dronedarone + Idelalisib Contraindicated
- Eletriptan + Idelalisib Contraindicated
- Eplerenone + Idelalisib Contraindicated
Frequently asked questions
Can I take Idelalisib with Oxcarbazepine?
MediHelp rates the interaction as major. Idelalisib and Oxcarbazepine can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Oxcarbazepine may reduce idelalisib exposure through CYP3A4 induction. Idelalisib labeling advises avoiding strong CYP3A inducers, and oxcarbazepine is a weaker inducer. Reduced exposure may compromise anticancer efficacy.
How serious is the interaction between Idelalisib and Oxcarbazepine?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Prefer a non-inducing anticonvulsant such as levetiracetam. If combined, monitor disease response closely.
What other medicines interact with Oxcarbazepine?
MediHelp also lists interactions of Oxcarbazepine with, for example, Cabotegravir, Rilpivirine, Artemether / lumefantrine. The full list is on the Oxcarbazepine page.
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