Drug interactions
Amitriptyline + Tramadol
Severity: Major
Amitriptyline and Tramadol: major interaction.
Last updated Sources: US FDA label
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
This pairing raises the risk of serotonin syndrome and seizures, and adds to sedation. Amitriptyline may inhibit CYP2D6, which reduces tramadol activation and may weaken analgesia.
What this interaction means in plain words
Amitriptyline and Tramadol can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Amitriptyline belongs to Central Nervous System; Tramadol belongs to Musculoskeletal.
Why it happens
Additive serotonergic effects, lowered seizure threshold, additive CNS depression, and CYP2D6 competition or inhibition.
What to do
Avoid if possible or use the lowest effective doses with close monitoring for serotonin toxicity, seizures and sedation. Consider an alternative analgesic if pain control is inadequate.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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References
Other interactions of Tramadol
- Isocarboxazid + Tramadol Contraindicated
- Olanzapine / samidorphan + Tramadol Contraindicated
- Phenelzine + Tramadol Contraindicated
- Procarbazine + Tramadol Contraindicated
- Rasagiline + Tramadol Contraindicated
- Safinamide + Tramadol Contraindicated
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 Tramadol?
MediHelp rates the interaction as major. Amitriptyline and Tramadol can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. This pairing raises the risk of serotonin syndrome and seizures, and adds to sedation. Amitriptyline may inhibit CYP2D6, which reduces tramadol activation and may weaken analgesia.
How serious is the interaction between Amitriptyline and Tramadol?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid if possible or use the lowest effective doses with close monitoring for serotonin toxicity, seizures and sedation. Consider an alternative analgesic if pain control is inadequate.
What other medicines interact with Tramadol?
MediHelp also lists interactions of Tramadol with, for example, Isocarboxazid, Olanzapine / samidorphan, Phenelzine. The full list is on the Tramadol page.
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