Drug interactions
Lemborexant + Olanzapine
Severity: Moderate
Lemborexant and Olanzapine: 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
Both drugs cause sedation, so their combination may increase somnolence and impair next-day psychomotor function. Olanzapine is not a recognized CYP3A4 inhibitor, so the main concern is additive CNS depression.
What this interaction means in plain words
Lemborexant and Olanzapine 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 belongs to Central Nervous System; Olanzapine belongs to Central Nervous System.
Why it happens
Additive CNS depression via orexin receptor antagonism and olanzapine's sedative receptor effects.
What to do
Use the lowest effective lemborexant dose and monitor for daytime sedation and impaired alertness. Counsel patients on driving and other hazardous activities.
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?
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Other interactions of Olanzapine
Other interactions of Lemborexant
Frequently asked questions
Can I take Lemborexant with Olanzapine?
MediHelp rates the interaction as moderate. Lemborexant and Olanzapine 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. Both drugs cause sedation, so their combination may increase somnolence and impair next-day psychomotor function. Olanzapine is not a recognized CYP3A4 inhibitor, so the main concern is additive CNS depression.
How serious is the interaction between Lemborexant and Olanzapine?
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 monitor for daytime sedation and impaired alertness. Counsel patients on driving and other hazardous activities.
What other medicines interact with Olanzapine?
MediHelp also lists interactions of Olanzapine with, for example, Amisulpride, Amoxapine, Apomorphine. The full list is on the Olanzapine page.
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