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Drug interactions

Daridorexant + Diazepam

Severity: Moderate

Daridorexant and Diazepam: moderate 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

Combining a benzodiazepine with an orexin receptor antagonist produces additive sedation and may impair next-day alertness, driving and coordination. Risk is greater at higher doses and in older adults.

What this interaction means in plain words

Daridorexant and Diazepam can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Daridorexant belongs to Central Nervous System; Diazepam belongs to Musculoskeletal.

Evidence level: Moderate

Why it happens

Additive CNS depression from GABA-A modulation and orexin receptor antagonism.

What to do

Avoid combining unless necessary and use the lowest effective doses. Counsel on daytime impairment and consider daridorexant dose reduction.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

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 Daridorexant with Diazepam?

MediHelp rates the interaction as moderate. Daridorexant and Diazepam can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Combining a benzodiazepine with an orexin receptor antagonist produces additive sedation and may impair next-day alertness, driving and coordination. Risk is greater at higher doses and in older adults.

How serious is the interaction between Daridorexant and Diazepam?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid combining unless necessary and use the lowest effective doses. Counsel on daytime impairment and consider daridorexant dose reduction.

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.

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

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