Drug interactions
Idelalisib + Rimegepant
Severity: Major
Idelalisib and Rimegepant: 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
Idelalisib is a strong CYP3A4 inhibitor and can substantially raise rimegepant concentrations. Rimegepant labeling advises against use with strong CYP3A4 inhibitors because of the risk of increased adverse effects.
What this interaction means in plain words
Idelalisib and Rimegepant 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; Rimegepant belongs to Central Nervous System.
Why it happens
Strong inhibition of CYP3A4-mediated metabolism of rimegepant.
What to do
Avoid concomitant use and consider a different acute migraine therapy while idelalisib is being taken.
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 Rimegepant
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 Rimegepant?
MediHelp rates the interaction as major. Idelalisib and Rimegepant 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 is a strong CYP3A4 inhibitor and can substantially raise rimegepant concentrations. Rimegepant labeling advises against use with strong CYP3A4 inhibitors because of the risk of increased adverse effects.
How serious is the interaction between Idelalisib and Rimegepant?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid concomitant use and consider a different acute migraine therapy while idelalisib is being taken.
What other medicines interact with Rimegepant?
MediHelp also lists interactions of Rimegepant with, for example, Amobarbital, Atazanavir, Butabarbital. The full list is on the Rimegepant page.
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