Drug interactions
Perphenazine + Tropisetron
Severity: Moderate
Perphenazine 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 used together they could increase the risk of arrhythmia. The effect is mostly of concern with other risk factors.
What this interaction means in plain words
Perphenazine 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.
What to do
Monitor ECG in patients with cardiac risk factors and correct electrolyte abnormalities. Consider a non-QT-prolonging antiemetic if risk is high.
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 Perphenazine
- Ibutilide + Perphenazine Contraindicated
- Perphenazine + Pimozide Contraindicated
- Perphenazine + Thioridazine Contraindicated
- Adagrasib + Perphenazine Major
- Alfentanil + Perphenazine Major
- Amiodarone + Perphenazine Major
Frequently asked questions
Can I take Perphenazine with Tropisetron?
MediHelp rates the interaction as moderate. Perphenazine 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 used together they could increase the risk of arrhythmia. The effect is mostly of concern with other risk factors.
How serious is the interaction between Perphenazine 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 risk factors and correct electrolyte abnormalities. Consider a non-QT-prolonging antiemetic if risk is high.
What other medicines interact with Perphenazine?
MediHelp also lists interactions of Perphenazine with, for example, Ibutilide, Pimozide, Thioridazine. The full list is on the Perphenazine page.
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