Drug interactions
Conivaptan + Rimegepant
Severity: Major
Conivaptan 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
Conivaptan is a strong CYP3A4 inhibitor and may raise rimegepant concentrations. This could increase adverse effects.
What this interaction means in plain words
Conivaptan 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.
Why it happens
Inhibition of CYP3A4-mediated rimegepant metabolism.
What to do
Avoid rimegepant during conivaptan therapy. Use an alternative acute migraine option.
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
Frequently asked questions
Can I take Conivaptan with Rimegepant?
MediHelp rates the interaction as major. Conivaptan 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. Conivaptan is a strong CYP3A4 inhibitor and may raise rimegepant concentrations. This could increase adverse effects.
How serious is the interaction between Conivaptan 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 rimegepant during conivaptan therapy. Use an alternative acute migraine option.
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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