Drug interactions
Trazodone + Tropisetron
Severity: Moderate
Trazodone and Tropisetron: 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 may prolong the QT interval, so combined use can increase the risk of torsades de pointes, particularly with electrolyte disturbances or heart disease.
What this interaction means in plain words
Trazodone and Tropisetron 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.
Why it happens
Additive QT prolongation through cardiac ion channel effects.
What to do
Obtain a baseline ECG and correct potassium and magnesium in patients at risk. Consider an alternative antiemetic if the QTc is prolonged.
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?
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Other interactions of Trazodone
- Arsenic trioxide + Trazodone Contraindicated
- Ibutilide + Trazodone Contraindicated
- Isocarboxazid + Trazodone Contraindicated
- Levoketoconazole + Trazodone Contraindicated
- Methylene blue + Trazodone Contraindicated
- Phenelzine + Trazodone Contraindicated
Frequently asked questions
Can I take Trazodone with Tropisetron?
MediHelp rates the interaction as moderate. Trazodone and Tropisetron 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 may prolong the QT interval, so combined use can increase the risk of torsades de pointes, particularly with electrolyte disturbances or heart disease.
How serious is the interaction between Trazodone and Tropisetron?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Obtain a baseline ECG and correct potassium and magnesium in patients at risk. Consider an alternative antiemetic if the QTc is prolonged.
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.
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