Drug interactions
Amitriptyline + Carisoprodol
Severity: Moderate
Amitriptyline and Carisoprodol: 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 combining them can increase drowsiness, dizziness and impaired psychomotor performance. Amitriptyline also adds anticholinergic effects, and CYP2C19 interactions involving carisoprodol metabolism are possible but not well characterised.
What this interaction means in plain words
Amitriptyline and Carisoprodol 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; Carisoprodol belongs to Musculoskeletal.
Why it happens
Additive CNS depression and anticholinergic effects.
What to do
Use the lowest effective doses and monitor for oversedation, especially in older adults. Advise against alcohol and 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 Carisoprodol
Other interactions of Amitriptyline
- Amitriptyline + Isocarboxazid Contraindicated
- Amitriptyline + Methylene blue Contraindicated
- Amitriptyline + Phenelzine Contraindicated
- Amitriptyline + Pimozide Contraindicated
- Amitriptyline + Procarbazine Contraindicated
- Amitriptyline + Safinamide Contraindicated
Frequently asked questions
Can I take Amitriptyline with Carisoprodol?
MediHelp rates the interaction as moderate. Amitriptyline and Carisoprodol 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 combining them can increase drowsiness, dizziness and impaired psychomotor performance. Amitriptyline also adds anticholinergic effects, and CYP2C19 interactions involving carisoprodol metabolism are possible but not well characterised.
How serious is the interaction between Amitriptyline and Carisoprodol?
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 monitor for oversedation, especially in older adults. Advise against alcohol and driving until the response is known.
What other medicines interact with Carisoprodol?
MediHelp also lists interactions of Carisoprodol with, for example, Alfentanil, Alprazolam, Amobarbital. The full list is on the Carisoprodol page.
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