Drug interactions
Daridorexant + Meclizine
Severity: Moderate
Daridorexant and Meclizine: 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 together they can increase next-day drowsiness and impair psychomotor performance and driving ability. The risk is greater at higher daridorexant doses and in older patients.
What this interaction means in plain words
Daridorexant and Meclizine 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; Meclizine belongs to Respiratory.
Why it happens
Additive CNS depression from orexin receptor antagonism and H1-antihistamine effects.
What to do
Avoid taking meclizine at bedtime with daridorexant when possible and consider lowering the daridorexant dose. Counsel patients on daytime impairment and driving.
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 Meclizine
Other interactions of Daridorexant
Frequently asked questions
Can I take Daridorexant with Meclizine?
MediHelp rates the interaction as moderate. Daridorexant and Meclizine 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 together they can increase next-day drowsiness and impair psychomotor performance and driving ability. The risk is greater at higher daridorexant doses and in older patients.
How serious is the interaction between Daridorexant and Meclizine?
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 taking meclizine at bedtime with daridorexant when possible and consider lowering the daridorexant dose. Counsel patients on daytime impairment and driving.
What other medicines interact with Meclizine?
MediHelp also lists interactions of Meclizine with, for example, Belladonna and opium, Benzhydrocodone / acetaminophen, Brexanolone. The full list is on the Meclizine page.
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