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Drug interactions

Indinavir + Nimodipine

Severity: Major

Indinavir and Nimodipine: 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

Indinavir inhibits CYP3A4 and can raise nimodipine exposure. The result may be excessive hypotension and vasodilatory adverse effects.

What this interaction means in plain words

Indinavir and Nimodipine 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.

Evidence level: Moderate

Why it happens

CYP3A4 inhibition by indinavir reduces nimodipine metabolism.

What to do

Monitor blood pressure closely and reduce the nimodipine dose as needed. Consider an alternative if hypotension is not controllable.

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 Indinavir with Nimodipine?

MediHelp rates the interaction as major. Indinavir and Nimodipine 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. Indinavir inhibits CYP3A4 and can raise nimodipine exposure. The result may be excessive hypotension and vasodilatory adverse effects.

How serious is the interaction between Indinavir and Nimodipine?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure closely and reduce the nimodipine dose as needed. Consider an alternative if hypotension is not controllable.

What other medicines interact with Nimodipine?

MediHelp also lists interactions of Nimodipine with, for example, Apalutamide, Carbamazepine, Ceritinib. The full list is on the Nimodipine page.

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

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