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Drug interactions

Amiodarone + Lemborexant

Severity: Major

Amiodarone and Lemborexant: 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

Amiodarone can raise lemborexant exposure through CYP3A4 inhibition. Higher levels may cause excessive sedation, next-day somnolence and impaired psychomotor performance.

What this interaction means in plain words

Amiodarone and Lemborexant 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.

Amiodarone belongs to Cardiovascular; Lemborexant belongs to Central Nervous System.

Evidence level: Moderate

Why it happens

Amiodarone inhibits CYP3A4, reducing the metabolic clearance of lemborexant.

What to do

Avoid the combination where possible; if used, keep lemborexant at the lowest recommended dose per labeling for CYP3A inhibitors and monitor for daytime sedation. Consider an alternative hypnotic not dependent on CYP3A4.

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 Amiodarone with Lemborexant?

MediHelp rates the interaction as major. Amiodarone and Lemborexant 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. Amiodarone can raise lemborexant exposure through CYP3A4 inhibition. Higher levels may cause excessive sedation, next-day somnolence and impaired psychomotor performance.

How serious is the interaction between Amiodarone and Lemborexant?

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 where possible; if used, keep lemborexant at the lowest recommended dose per labeling for CYP3A inhibitors and monitor for daytime sedation. Consider an alternative hypnotic not dependent on CYP3A4.

What other medicines interact with Amiodarone?

MediHelp also lists interactions of Amiodarone with, for example, Amisulpride, Arsenic trioxide, Dofetilide. The full list is on the Amiodarone page.

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