Drug interactions
Dronedarone + Tropisetron
Severity: Moderate
Dronedarone 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 can prolong the QT interval, so combined use may raise the risk of torsades de pointes. Tropisetron is also partly metabolized by CYP2D6, which dronedarone inhibits.
What this interaction means in plain words
Dronedarone 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 CYP2D6 inhibition increasing tropisetron levels.
What to do
Use an antiemetic with less QT effect where possible. Otherwise obtain an ECG and correct potassium and magnesium.
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 Dronedarone
- Adagrasib + Dronedarone Contraindicated
- Amiodarone + Dronedarone Contraindicated
- Arsenic trioxide + Dronedarone Contraindicated
- Artemether / lumefantrine + Dronedarone Contraindicated
- Atazanavir + Dronedarone Contraindicated
- Azithromycin + Dronedarone Contraindicated
Frequently asked questions
Can I take Dronedarone with Tropisetron?
MediHelp rates the interaction as moderate. Dronedarone 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 can prolong the QT interval, so combined use may raise the risk of torsades de pointes. Tropisetron is also partly metabolized by CYP2D6, which dronedarone inhibits.
How serious is the interaction between Dronedarone 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: Use an antiemetic with less QT effect where possible. Otherwise obtain an ECG and correct potassium and magnesium.
What other medicines interact with Dronedarone?
MediHelp also lists interactions of Dronedarone with, for example, Adagrasib, Amiodarone, Arsenic trioxide. The full list is on the Dronedarone page.
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