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Drug interactions

Oxaliplatin + Trazodone

Severity: Moderate

Oxaliplatin and Trazodone: moderate 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 have been linked to QT prolongation. Oxaliplatin-related electrolyte loss from vomiting or diarrhea can further raise arrhythmia risk when trazodone is used.

What this interaction means in plain words

Oxaliplatin and Trazodone can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Oxaliplatin belongs to Oncology; Trazodone belongs to Central Nervous System.

Evidence level: Low

Why it happens

Additive pharmacodynamic QT prolongation, worsened by chemotherapy-induced electrolyte disturbances.

What to do

Monitor ECG and keep potassium and magnesium within normal range during oxaliplatin treatment. Consider an alternative antidepressant if QTc lengthens significantly.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

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 Oxaliplatin with Trazodone?

MediHelp rates the interaction as moderate. Oxaliplatin and Trazodone can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Both drugs have been linked to QT prolongation. Oxaliplatin-related electrolyte loss from vomiting or diarrhea can further raise arrhythmia risk when trazodone is used.

How serious is the interaction between Oxaliplatin and Trazodone?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor ECG and keep potassium and magnesium within normal range during oxaliplatin treatment. Consider an alternative antidepressant if QTc lengthens significantly.

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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