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Drug interactions

Tramadol + Vilazodone

Severity: Major

Tramadol and Vilazodone: major 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 enhance serotonergic neurotransmission, so using them together raises the risk of serotonin syndrome, with agitation, tremor, hyperthermia, clonus and autonomic instability. Tramadol also lowers the seizure threshold, which adds to the concern.

What this interaction means in plain words

Tramadol and Vilazodone 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.

Tramadol belongs to Musculoskeletal; Vilazodone belongs to Central Nervous System.

Evidence level: Moderate

Why it happens

Additive serotonergic effects from tramadol's serotonin reuptake inhibition and vilazodone's SSRI and 5-HT1A partial agonist activity.

What to do

Prefer a non-serotonergic analgesic where possible. If both are needed, use the lowest doses, monitor for serotonin toxicity, and stop both drugs promptly if it develops.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Tramadol with Vilazodone?

MediHelp rates the interaction as major. Tramadol and Vilazodone 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 drugs enhance serotonergic neurotransmission, so using them together raises the risk of serotonin syndrome, with agitation, tremor, hyperthermia, clonus and autonomic instability. Tramadol also lowers the seizure threshold, which adds to the concern.

How serious is the interaction between Tramadol and Vilazodone?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Prefer a non-serotonergic analgesic where possible. If both are needed, use the lowest doses, monitor for serotonin toxicity, and stop both drugs promptly if it develops.

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.

Full monographs, dosing and an interaction checker in the MediHelp app

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