Drug interactions
Ranolazine + Tropisetron
Severity: Moderate
Ranolazine 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
5-HT3 antagonists such as tropisetron can prolong the QT interval, and ranolazine also has dose-related QT effects. Combined use may modestly increase the risk of arrhythmia.
What this interaction means in plain words
Ranolazine 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 prolongation of cardiac repolarization.
What to do
Monitor ECG in patients with cardiac disease or electrolyte disturbances and correct potassium and magnesium. Consider a non-QT-prolonging antiemetic in high-risk patients.
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 Ranolazine
- Adagrasib + Ranolazine Contraindicated
- Amobarbital + Ranolazine Contraindicated
- Apalutamide + Ranolazine Contraindicated
- Butabarbital + Ranolazine Contraindicated
- Carbamazepine + Ranolazine Contraindicated
- Clarithromycin + Ranolazine Contraindicated
Frequently asked questions
Can I take Ranolazine with Tropisetron?
MediHelp rates the interaction as moderate. Ranolazine 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. 5-HT3 antagonists such as tropisetron can prolong the QT interval, and ranolazine also has dose-related QT effects. Combined use may modestly increase the risk of arrhythmia.
How serious is the interaction between Ranolazine 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: Monitor ECG in patients with cardiac disease or electrolyte disturbances and correct potassium and magnesium. Consider a non-QT-prolonging antiemetic in high-risk patients.
What other medicines interact with Ranolazine?
MediHelp also lists interactions of Ranolazine with, for example, Adagrasib, Amobarbital, Apalutamide. The full list is on the Ranolazine page.
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