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Drug interactions

Momelotinib + Rimegepant

Severity: Moderate

Momelotinib and Rimegepant: moderate 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

Momelotinib inhibits BCRP and may increase exposure to BCRP substrates. Rimegepant is a BCRP substrate, so levels could rise modestly, but protein-binding displacement is not a relevant mechanism.

What this interaction means in plain words

Momelotinib and Rimegepant can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Momelotinib belongs to Oncology; Rimegepant belongs to Central Nervous System.

Evidence level: Low

Why it happens

Inhibition of BCRP efflux transport, which may increase rimegepant absorption.

What to do

Avoid repeat rimegepant dosing within 48 hours and monitor for adverse effects.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

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 Momelotinib with Rimegepant?

MediHelp rates the interaction as moderate. Momelotinib and Rimegepant can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Momelotinib inhibits BCRP and may increase exposure to BCRP substrates. Rimegepant is a BCRP substrate, so levels could rise modestly, but protein-binding displacement is not a relevant mechanism.

How serious is the interaction between Momelotinib and Rimegepant?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid repeat rimegepant dosing within 48 hours and monitor for adverse effects.

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

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