Drug interactions
Ergotamine + Topiramate
Severity: Minor
Ergotamine 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 modestly reduce ergotamine exposure and anti-migraine effect. The effect is likely small and is not expected to cause toxicity.
What this interaction means in plain words
Ergotamine 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.
Ergotamine belongs to Central Nervous System; Topiramate belongs to Central Nervous System.
Why it happens
Weak induction of CYP3A4-mediated ergotamine metabolism by topiramate.
What to do
No routine dose change is needed; monitor for reduced headache response, especially at topiramate doses of 200 mg/day or more.
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 Topiramate
Other interactions of Ergotamine
- Almotriptan + Ergotamine Contraindicated
- Atazanavir + Ergotamine Contraindicated
- Clarithromycin + Ergotamine Contraindicated
- Cobicistat + Ergotamine Contraindicated
- Darunavir + Ergotamine Contraindicated
- Dihydroergotamine intranasal + Ergotamine Contraindicated
Frequently asked questions
Can I take Ergotamine with Topiramate?
MediHelp rates the interaction as minor. Ergotamine 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 modestly reduce ergotamine exposure and anti-migraine effect. The effect is likely small and is not expected to cause toxicity.
How serious is the interaction between Ergotamine 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 dose change is needed; monitor for reduced headache response, especially at topiramate doses of 200 mg/day or more.
What other medicines interact with Topiramate?
MediHelp also lists interactions of Topiramate with, for example, Benzhydrocodone / acetaminophen, Buprenorphine long-acting, Buprenorphine subdermal implant. The full list is on the Topiramate page.
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