Drug interactions
Amitriptyline + Daridorexant
Severity: Moderate
Amitriptyline 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 combined use can intensify drowsiness and impair psychomotor performance and next-day alertness. The risk of falls and impaired driving rises, particularly in older adults.
What this interaction means in plain words
Amitriptyline 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.
Amitriptyline belongs to Central Nervous System; Daridorexant belongs to Central Nervous System.
Why it happens
Additive CNS depression from orexin receptor antagonism and the antihistaminic and anticholinergic sedating effects of amitriptyline.
What to do
Use the lowest effective dose of each and counsel patients about next-day impairment when driving. Consider reducing the daridorexant dose or amitriptyline dose if daytime sedation occurs.
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 Amitriptyline
- Amitriptyline + Isocarboxazid Contraindicated
- Amitriptyline + Methylene blue Contraindicated
- Amitriptyline + Phenelzine Contraindicated
- Amitriptyline + Pimozide Contraindicated
- Amitriptyline + Procarbazine Contraindicated
- Amitriptyline + Safinamide Contraindicated
Other interactions of Daridorexant
Frequently asked questions
Can I take Amitriptyline with Daridorexant?
MediHelp rates the interaction as moderate. Amitriptyline 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 combined use can intensify drowsiness and impair psychomotor performance and next-day alertness. The risk of falls and impaired driving rises, particularly in older adults.
How serious is the interaction between Amitriptyline 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: Use the lowest effective dose of each and counsel patients about next-day impairment when driving. Consider reducing the daridorexant dose or amitriptyline dose if daytime sedation occurs.
What other medicines interact with Amitriptyline?
MediHelp also lists interactions of Amitriptyline with, for example, Isocarboxazid, Methylene blue, Phenelzine. The full list is on the Amitriptyline page.
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