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Drug interactions

Brexanolone + Diazepam

Severity: Major

Brexanolone and Diazepam: 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

Brexanolone causes dose-related sedation and sudden loss of consciousness, and other CNS depressants such as diazepam may add to these effects. The combination increases the risk of excessive sedation and impaired responsiveness during the infusion.

What this interaction means in plain words

Brexanolone and Diazepam 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

Additive CNS depression, as both drugs positively modulate GABA-A receptors.

What to do

Monitor continuously for sedation and hypoxia during the infusion, and reduce or interrupt the infusion if excessive sedation occurs. Review whether the benzodiazepine is needed during treatment.

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 Brexanolone with Diazepam?

MediHelp rates the interaction as major. Brexanolone and Diazepam 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. Brexanolone causes dose-related sedation and sudden loss of consciousness, and other CNS depressants such as diazepam may add to these effects. The combination increases the risk of excessive sedation and impaired responsiveness during the infusion.

How serious is the interaction between Brexanolone and Diazepam?

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 continuously for sedation and hypoxia during the infusion, and reduce or interrupt the infusion if excessive sedation occurs. Review whether the benzodiazepine is needed during treatment.

What other medicines interact with Diazepam?

MediHelp also lists interactions of Diazepam with, for example, Calcium / magnesium / potassium / sodium oxybates, Alfentanil, Alprazolam. The full list is on the Diazepam page.

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