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Drug interactions

Ozanimod + Trazodone

Severity: Major

Ozanimod and Trazodone: 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

Ozanimod's active metabolite inhibits MAO-B in vitro, and labeling advises against combining it with drugs that raise serotonin or norepinephrine. Combining it with trazodone raises concern for serotonin syndrome and blood pressure elevation. Clinical data are limited.

What this interaction means in plain words

Ozanimod and Trazodone 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.

Ozanimod belongs to Central Nervous System; Trazodone belongs to Central Nervous System.

Evidence level: Low

Why it happens

Possible MAO inhibition by ozanimod metabolites combined with serotonergic activity of trazodone, leading to additive serotonergic and adrenergic effects.

What to do

Avoid the combination where possible and consider alternatives. If used, monitor blood pressure and for serotonin toxicity such as agitation, tremor, hyperreflexia and hyperthermia.

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 Ozanimod with Trazodone?

MediHelp rates the interaction as major. Ozanimod and Trazodone 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. Ozanimod's active metabolite inhibits MAO-B in vitro, and labeling advises against combining it with drugs that raise serotonin or norepinephrine. Combining it with trazodone raises concern for serotonin syndrome and blood pressure elevation. Clinical data are limited.

How serious is the interaction between Ozanimod and Trazodone?

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 where possible and consider alternatives. If used, monitor blood pressure and for serotonin toxicity such as agitation, tremor, hyperreflexia and hyperthermia.

What other medicines interact with Trazodone?

MediHelp also lists interactions of Trazodone with, for example, Arsenic trioxide, Ibutilide, Isocarboxazid. The full list is on the Trazodone page.

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

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