Drug interactions
Lorcaserin + Tramadol
Severity: Major
Lorcaserin 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 have serotonergic activity, so combining them may cause serotonin syndrome with agitation, hyperthermia, tremor, clonus and autonomic instability. Tramadol also lowers seizure threshold.
What this interaction means in plain words
Lorcaserin 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.
Why it happens
Additive serotonergic effects via tramadol reuptake inhibition and lorcaserin 5-HT2C agonism.
What to do
Avoid the combination; choose a non-serotonergic analgesic. If used, monitor for serotonin syndrome symptoms.
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
Frequently asked questions
Can I take Lorcaserin with Tramadol?
MediHelp rates the interaction as major. Lorcaserin 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 have serotonergic activity, so combining them may cause serotonin syndrome with agitation, hyperthermia, tremor, clonus and autonomic instability. Tramadol also lowers seizure threshold.
How serious is the interaction between Lorcaserin 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 the combination; choose a non-serotonergic analgesic. If used, monitor for serotonin syndrome symptoms.
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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