Drug interactions
Simvastatin + Topiramate
Severity: Minor
Simvastatin 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 may slightly lower simvastatin exposure. The clinical consequence is generally small.
What this interaction means in plain words
Simvastatin 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.
Simvastatin belongs to Cardiovascular; Topiramate belongs to Central Nervous System.
Why it happens
Topiramate weakly induces CYP3A4, increasing simvastatin metabolism.
What to do
No routine adjustment is needed. Check lipids if the response seems diminished.
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 Simvastatin
- Atazanavir + Simvastatin Contraindicated
- Clarithromycin + Simvastatin Contraindicated
- Cobicistat + Simvastatin Contraindicated
- Cyclosporine + Simvastatin Contraindicated
- Cyclosporin + Simvastatin Contraindicated
- Danazol + Simvastatin Contraindicated
Other interactions of Topiramate
Frequently asked questions
Can I take Simvastatin with Topiramate?
MediHelp rates the interaction as minor. Simvastatin 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 may slightly lower simvastatin exposure. The clinical consequence is generally small.
How serious is the interaction between Simvastatin 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. Check lipids if the response seems diminished.
What other medicines interact with Simvastatin?
MediHelp also lists interactions of Simvastatin with, for example, Atazanavir, Clarithromycin, Cobicistat. The full list is on the Simvastatin page.
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