Drug interactions
Maprotiline + Tropisetron
Severity: Moderate
Maprotiline 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 increase the chance of torsades de pointes. The risk is greater with electrolyte abnormalities, cardiac disease or additional QT-prolonging drugs.
What this interaction means in plain words
Maprotiline 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 pharmacodynamic effect on cardiac repolarization (QT prolongation).
What to do
Get a baseline ECG, correct potassium and magnesium, and monitor the QTc. Choose a non-QT-prolonging antiemetic if the patient has other risk factors.
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 Maprotiline
- Arsenic trioxide + Maprotiline Contraindicated
- Disopyramide + Maprotiline Contraindicated
- Dofetilide + Maprotiline Contraindicated
- Ibutilide + Maprotiline Contraindicated
- Isocarboxazid + Maprotiline Contraindicated
- Maprotiline + Methylene blue Contraindicated
Frequently asked questions
Can I take Maprotiline with Tropisetron?
MediHelp rates the interaction as moderate. Maprotiline 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 increase the chance of torsades de pointes. The risk is greater with electrolyte abnormalities, cardiac disease or additional QT-prolonging drugs.
How serious is the interaction between Maprotiline 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: Get a baseline ECG, correct potassium and magnesium, and monitor the QTc. Choose a non-QT-prolonging antiemetic if the patient has other risk factors.
What other medicines interact with Maprotiline?
MediHelp also lists interactions of Maprotiline with, for example, Arsenic trioxide, Disopyramide, Dofetilide. The full list is on the Maprotiline page.
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