Drug interactions
Propafenone + Topiramate
Severity: Minor
Propafenone and Topiramate: 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
Topiramate is a weak CYP3A4 inducer at higher doses and might slightly reduce propafenone exposure. Clinical effect is unlikely to be significant.
What this interaction means in plain words
Propafenone and Topiramate have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Propafenone belongs to Cardiovascular; Topiramate belongs to Central Nervous System.
Why it happens
Weak dose-dependent CYP3A4 induction by topiramate.
What to do
No routine adjustment is needed. Monitor arrhythmia control if topiramate is titrated to high doses.
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
Other interactions of Topiramate
Frequently asked questions
Can I take Propafenone with Topiramate?
MediHelp rates the interaction as minor. Propafenone and Topiramate have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Topiramate is a weak CYP3A4 inducer at higher doses and might slightly reduce propafenone exposure. Clinical effect is unlikely to be significant.
How serious is the interaction between Propafenone and Topiramate?
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 adjustment is needed. Monitor arrhythmia control if topiramate is titrated to high doses.
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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