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Drug interactions

Aprepitant + Imatinib

Severity: Moderate

Aprepitant and Imatinib: 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

Imatinib is mainly metabolised by CYP3A4, so aprepitant may increase imatinib exposure. Higher levels could increase fluid retention, myelosuppression and gastrointestinal toxicity.

What this interaction means in plain words

Aprepitant and Imatinib 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.

Aprepitant belongs to Gastrointestinal Tract; Imatinib belongs to Oncology.

Evidence level: Low

Why it happens

Aprepitant inhibits CYP3A4, reducing imatinib clearance.

What to do

Monitor blood counts and signs of imatinib toxicity during aprepitant use; consider dose reduction if adverse effects emerge.

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 Aprepitant with Imatinib?

MediHelp rates the interaction as moderate. Aprepitant and Imatinib 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. Imatinib is mainly metabolised by CYP3A4, so aprepitant may increase imatinib exposure. Higher levels could increase fluid retention, myelosuppression and gastrointestinal toxicity.

How serious is the interaction between Aprepitant and Imatinib?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood counts and signs of imatinib toxicity during aprepitant use; consider dose reduction if adverse effects emerge.

What other medicines interact with Aprepitant?

MediHelp also lists interactions of Aprepitant with, for example, Lomitapide, Pimozide, Avapritinib. The full list is on the Aprepitant page.

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

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