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Drug interactions

Brexpiprazole + Lemborexant

Severity: Moderate

Brexpiprazole and Lemborexant: 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

Lemborexant is a sedative-hypnotic orexin antagonist and brexpiprazole also causes somnolence. Combining them may increase sedation, next-day impairment and falls risk.

What this interaction means in plain words

Brexpiprazole and Lemborexant 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.

Brexpiprazole belongs to Central Nervous System; Lemborexant belongs to Central Nervous System.

Evidence level: Low

Why it happens

Additive central nervous system depressant effects.

What to do

Use the lowest effective lemborexant dose and counsel about next-day drowsiness and driving. Monitor for excessive sedation and falls, especially in older patients.

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 Brexpiprazole with Lemborexant?

MediHelp rates the interaction as moderate. Brexpiprazole and Lemborexant 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. Lemborexant is a sedative-hypnotic orexin antagonist and brexpiprazole also causes somnolence. Combining them may increase sedation, next-day impairment and falls risk.

How serious is the interaction between Brexpiprazole and Lemborexant?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective lemborexant dose and counsel about next-day drowsiness and driving. Monitor for excessive sedation and falls, especially in older patients.

What other medicines interact with Brexpiprazole?

MediHelp also lists interactions of Brexpiprazole with, for example, Alfentanil, Amisulpride, Apalutamide. The full list is on the Brexpiprazole page.

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

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