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Drug interactions

Amiodarone + Midazolam intranasal

Severity: Major

Amiodarone and Midazolam intranasal: 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 may moderately raise midazolam exposure through CYP3A4 inhibition. This may prolong sedation and increase the risk of respiratory depression.

What this interaction means in plain words

Amiodarone and Midazolam intranasal 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

Amiodarone inhibits CYP3A4-mediated midazolam metabolism.

What to do

Avoid if possible, or monitor sedation and respiration closely after dosing. Avoid repeat dosing within short intervals and have resuscitation support available.

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 Midazolam intranasal?

MediHelp rates the interaction as major. Amiodarone and Midazolam intranasal 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 may moderately raise midazolam exposure through CYP3A4 inhibition. This may prolong sedation and increase the risk of respiratory depression.

How serious is the interaction between Amiodarone and Midazolam intranasal?

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 if possible, or monitor sedation and respiration closely after dosing. Avoid repeat dosing within short intervals and have resuscitation support available.

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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