Drug interactions
Desvenlafaxine + Tramadol
Severity: Major
Desvenlafaxine 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
Both agents increase synaptic serotonin, so combined use raises the risk of serotonin syndrome and seizures. Desvenlafaxine may also modestly inhibit CYP2D6, reducing tramadol activation.
What this interaction means in plain words
Desvenlafaxine 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.
Desvenlafaxine belongs to Central Nervous System; Tramadol belongs to Musculoskeletal.
Why it happens
Additive serotonergic effects from reuptake inhibition by both drugs, plus lowered seizure threshold.
What to do
Avoid if possible and use a non-serotonergic analgesic. If combined, use the lowest tramadol dose and monitor for serotonin toxicity and seizures.
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 Desvenlafaxine
- Desvenlafaxine + Isocarboxazid Contraindicated
- Desvenlafaxine + Methylene blue Contraindicated
- Desvenlafaxine + Phenelzine Contraindicated
- Desvenlafaxine + Rasagiline Contraindicated
- Desvenlafaxine + Safinamide Contraindicated
- Desvenlafaxine + Selegiline Contraindicated
Frequently asked questions
Can I take Desvenlafaxine with Tramadol?
MediHelp rates the interaction as major. Desvenlafaxine 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. Both agents increase synaptic serotonin, so combined use raises the risk of serotonin syndrome and seizures. Desvenlafaxine may also modestly inhibit CYP2D6, reducing tramadol activation.
How serious is the interaction between Desvenlafaxine 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 and use a non-serotonergic analgesic. If combined, use the lowest tramadol dose and monitor for serotonin toxicity and seizures.
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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