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Drug interactions

Atogepant + Diltiazem

Severity: Moderate

Atogepant and Diltiazem: 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

Diltiazem, a moderate CYP3A4 inhibitor, can raise atogepant exposure and increase adverse effects such as constipation, nausea and fatigue.

What this interaction means in plain words

Atogepant and Diltiazem 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.

Atogepant belongs to Central Nervous System; Diltiazem belongs to Cardiovascular.

Evidence level: Moderate

Why it happens

Inhibition of CYP3A4 metabolism of atogepant by diltiazem.

What to do

Limit atogepant to the lower dose recommended with CYP3A4 inhibitors when used for migraine prevention, and monitor tolerability.

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 Atogepant with Diltiazem?

MediHelp rates the interaction as moderate. Atogepant and Diltiazem 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. Diltiazem, a moderate CYP3A4 inhibitor, can raise atogepant exposure and increase adverse effects such as constipation, nausea and fatigue.

How serious is the interaction between Atogepant and Diltiazem?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Limit atogepant to the lower dose recommended with CYP3A4 inhibitors when used for migraine prevention, and monitor tolerability.

What other medicines interact with Diltiazem?

MediHelp also lists interactions of Diltiazem with, for example, Flibanserin, Ivabradine, Lomitapide. The full list is on the Diltiazem page.

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

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