Drug interactions
Lemborexant + Risperidone
Severity: Moderate
Lemborexant and Risperidone: 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 combined use may increase next-day drowsiness and psychomotor impairment. Risperidone is not a meaningful CYP3A4 inhibitor, so the pharmacodynamic effect is the main concern.
What this interaction means in plain words
Lemborexant and Risperidone 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; Risperidone belongs to Central Nervous System.
Why it happens
Additive CNS depression through orexin antagonism and antipsychotic sedation.
What to do
Use the lowest effective lemborexant dose and counsel patients on next-day impairment. Monitor for excessive sedation and falls, especially in older adults.
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 Risperidone
- Ibutilide + Risperidone Contraindicated
- Risperidone + Vandetanib Contraindicated
- Adagrasib + Risperidone Major
- Amiodarone + Risperidone Major
- Amisulpride + Risperidone Major
- Amoxapine + Risperidone Major
Other interactions of Lemborexant
Frequently asked questions
Can I take Lemborexant with Risperidone?
MediHelp rates the interaction as moderate. Lemborexant and Risperidone 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 combined use may increase next-day drowsiness and psychomotor impairment. Risperidone is not a meaningful CYP3A4 inhibitor, so the pharmacodynamic effect is the main concern.
How serious is the interaction between Lemborexant and Risperidone?
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 patients on next-day impairment. Monitor for excessive sedation and falls, especially in older adults.
What other medicines interact with Risperidone?
MediHelp also lists interactions of Risperidone with, for example, Ibutilide, Vandetanib, Adagrasib. The full list is on the Risperidone page.
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