Drug interactions
Propafenone + Tropisetron
Severity: Minor
Propafenone and Tropisetron: minor 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
Tropisetron is metabolized by CYP2D6, which propafenone inhibits, so tropisetron exposure may rise. Clinical effects are likely modest, but both agents can influence cardiac conduction.
What this interaction means in plain words
Propafenone and Tropisetron have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Propafenone inhibition of CYP2D6-mediated tropisetron metabolism.
What to do
No routine dose change is needed for short antiemetic courses. Monitor ECG if the patient has other QT risk factors.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Propafenone
- Dofetilide + Propafenone Contraindicated
- Dronedarone + Propafenone Contraindicated
- Nilotinib + Propafenone Contraindicated
- Nirmatrelvir / ritonavir + Propafenone Contraindicated
- Nirmatrelvir + Propafenone Contraindicated
- Pimozide + Propafenone Contraindicated
Frequently asked questions
Can I take Propafenone with Tropisetron?
MediHelp rates the interaction as minor. Propafenone and Tropisetron have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Tropisetron is metabolized by CYP2D6, which propafenone inhibits, so tropisetron exposure may rise. Clinical effects are likely modest, but both agents can influence cardiac conduction.
How serious is the interaction between Propafenone and Tropisetron?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine dose change is needed for short antiemetic courses. Monitor ECG if the patient has other QT risk factors.
What other medicines interact with Propafenone?
MediHelp also lists interactions of Propafenone with, for example, Dofetilide, Dronedarone, Nilotinib. The full list is on the Propafenone page.
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