Drug interactions
Daridorexant + Orphenadrin
Severity: Moderate
Daridorexant and Orphenadrin: 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
Orphenadrine is an anticholinergic muscle relaxant with sedative effects, and daridorexant is an orexin receptor antagonist hypnotic. Together they can increase sedation and impair psychomotor performance and next-day alertness.
What this interaction means in plain words
Daridorexant and Orphenadrin 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; Orphenadrin belongs to Musculoskeletal.
Why it happens
Additive CNS depression from sedative anticholinergic and orexin receptor antagonism.
What to do
Use the lowest effective doses and consider reducing the daridorexant dose. Warn patients about next-day drowsiness and avoid driving until the response is known.
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 Orphenadrin
Other interactions of Daridorexant
Frequently asked questions
Can I take Daridorexant with Orphenadrin?
MediHelp rates the interaction as moderate. Daridorexant and Orphenadrin 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. Orphenadrine is an anticholinergic muscle relaxant with sedative effects, and daridorexant is an orexin receptor antagonist hypnotic. Together they can increase sedation and impair psychomotor performance and next-day alertness.
How serious is the interaction between Daridorexant and Orphenadrin?
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 doses and consider reducing the daridorexant dose. Warn patients about next-day drowsiness and avoid driving until the response is known.
What other medicines interact with Orphenadrin?
MediHelp also lists interactions of Orphenadrin with, for example, Alfentanil, Amobarbital, Benzhydrocodone / acetaminophen. The full list is on the Orphenadrin page.
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