Drug interactions
Clemastine + Daridorexant
Severity: Moderate
Clemastine and Daridorexant: 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 using them together can intensify drowsiness and impair psychomotor performance. Next-day impairment of alertness and driving is the main concern.
What this interaction means in plain words
Clemastine and Daridorexant 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.
Clemastine belongs to Respiratory; Daridorexant belongs to Central Nervous System.
Why it happens
Additive CNS depression from orexin receptor antagonism plus H1 blockade.
What to do
Avoid combining where possible; if needed, consider a lower daridorexant dose. Warn patients about next-day 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 Clemastine
Other interactions of Daridorexant
Frequently asked questions
Can I take Clemastine with Daridorexant?
MediHelp rates the interaction as moderate. Clemastine and Daridorexant 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 using them together can intensify drowsiness and impair psychomotor performance. Next-day impairment of alertness and driving is the main concern.
How serious is the interaction between Clemastine and Daridorexant?
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 combining where possible; if needed, consider a lower daridorexant dose. Warn patients about next-day impairment and driving.
What other medicines interact with Clemastine?
MediHelp also lists interactions of Clemastine with, for example, Alfentanil, Benzhydrocodone / acetaminophen, Buprenorphine buccal. The full list is on the Clemastine page.
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