Drug interactions
Fluvoxamine + Tropisetron
Severity: Moderate
Fluvoxamine 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
Fluvoxamine inhibits CYP2D6 modestly and both drugs may prolong the QT interval. Tropisetron is a 5-HT3 antagonist, and exposure may rise, so arrhythmia risk could increase in susceptible patients.
What this interaction means in plain words
Fluvoxamine 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, with possible fluvoxamine inhibition of tropisetron metabolism.
What to do
Correct potassium and magnesium before use. Obtain an ECG in patients with cardiac disease or other QT-prolonging drugs.
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 Fluvoxamine
- Agomelatine + Fluvoxamine Contraindicated
- Alosetron + Fluvoxamine Contraindicated
- Fezolinetant + Fluvoxamine Contraindicated
- Fluvoxamine + Isocarboxazid Contraindicated
- Fluvoxamine + Mavacamten Contraindicated
- Fluvoxamine + Methylene blue Contraindicated
Frequently asked questions
Can I take Fluvoxamine with Tropisetron?
MediHelp rates the interaction as moderate. Fluvoxamine 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. Fluvoxamine inhibits CYP2D6 modestly and both drugs may prolong the QT interval. Tropisetron is a 5-HT3 antagonist, and exposure may rise, so arrhythmia risk could increase in susceptible patients.
How serious is the interaction between Fluvoxamine 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: Correct potassium and magnesium before use. Obtain an ECG in patients with cardiac disease or other QT-prolonging drugs.
What other medicines interact with Fluvoxamine?
MediHelp also lists interactions of Fluvoxamine with, for example, Agomelatine, Alosetron, Fezolinetant. The full list is on the Fluvoxamine page.
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