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Drug interactions

Nelfinavir + Rimegepant

Severity: Major

Nelfinavir 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

Nelfinavir inhibits CYP3A4 and P-glycoprotein and may raise rimegepant exposure. The risk of rimegepant adverse effects increases.

What this interaction means in plain words

Nelfinavir 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.

Nelfinavir belongs to Anti Virals; Rimegepant belongs to Central Nervous System.

Evidence level: Moderate

Why it happens

Inhibition of CYP3A4 metabolism and P-glycoprotein efflux of rimegepant.

What to do

Avoid concomitant use and use an alternative acute migraine therapy.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Nelfinavir with Rimegepant?

MediHelp rates the interaction as major. Nelfinavir 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. Nelfinavir inhibits CYP3A4 and P-glycoprotein and may raise rimegepant exposure. The risk of rimegepant adverse effects increases.

How serious is the interaction between Nelfinavir 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 use an alternative acute migraine therapy.

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.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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