Drug interactions
Lemborexant + Lorazepam
Severity: Moderate
Lemborexant and Lorazepam: 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 an orexin receptor antagonist that promotes sleep, and combining it with lorazepam produces additive sedation. This raises the risk of next-day somnolence, impaired alertness and falls.
What this interaction means in plain words
Lemborexant and Lorazepam 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; Lorazepam belongs to Central Nervous System.
Why it happens
Additive CNS depression via different pathways (orexin receptor blockade and GABA-A potentiation).
What to do
Avoid routine co-use for insomnia where possible; if combined, use the lowest effective dose of each and monitor for daytime impairment and falls. Advise against driving the next day if drowsy.
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 Lorazepam
Other interactions of Lemborexant
Frequently asked questions
Can I take Lemborexant with Lorazepam?
MediHelp rates the interaction as moderate. Lemborexant and Lorazepam 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 an orexin receptor antagonist that promotes sleep, and combining it with lorazepam produces additive sedation. This raises the risk of next-day somnolence, impaired alertness and falls.
How serious is the interaction between Lemborexant and Lorazepam?
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 routine co-use for insomnia where possible; if combined, use the lowest effective dose of each and monitor for daytime impairment and falls. Advise against driving the next day if drowsy.
What other medicines interact with Lorazepam?
MediHelp also lists interactions of Lorazepam with, for example, Alfentanil, Alprazolam, Amobarbital. The full list is on the Lorazepam page.
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