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Drug interactions

Nefazodone + Nimodipine

Severity: Major

Nefazodone 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

Nefazodone is a strong CYP3A4 inhibitor and can substantially increase nimodipine levels. This may cause pronounced hypotension, dizziness and bradycardia.

What this interaction means in plain words

Nefazodone 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

Nefazodone inhibits CYP3A4, reducing nimodipine metabolism.

What to do

Avoid the combination, preferably using an antidepressant that does not inhibit CYP3A4. If used together, monitor blood pressure closely and reduce the nimodipine dose.

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 Nefazodone with Nimodipine?

MediHelp rates the interaction as major. Nefazodone 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. Nefazodone is a strong CYP3A4 inhibitor and can substantially increase nimodipine levels. This may cause pronounced hypotension, dizziness and bradycardia.

How serious is the interaction between Nefazodone 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: Avoid the combination, preferably using an antidepressant that does not inhibit CYP3A4. If used together, monitor blood pressure closely and reduce the nimodipine dose.

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.

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