Drug interactions
Itraconazole + Topiramate
Severity: Minor
Itraconazole 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 usual doses and is unlikely to lower itraconazole substantially. A small decrease in itraconazole levels is possible at higher topiramate doses.
What this interaction means in plain words
Itraconazole 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.
Itraconazole belongs to Anti Fungals; Topiramate belongs to Central Nervous System.
Why it happens
Weak CYP3A4 induction by topiramate may slightly increase itraconazole clearance.
What to do
No routine change; monitor antifungal response in serious infections.
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 Itraconazole
- Alfuzosin + Itraconazole Contraindicated
- Alprazolam + Itraconazole Contraindicated
- Avanafil + Itraconazole Contraindicated
- Conivaptan + Itraconazole Contraindicated
- Dihydroergotamine intranasal + Itraconazole Contraindicated
- Dihydroergotamine + Itraconazole Contraindicated
Other interactions of Topiramate
Frequently asked questions
Can I take Itraconazole with Topiramate?
MediHelp rates the interaction as minor. Itraconazole 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 usual doses and is unlikely to lower itraconazole substantially. A small decrease in itraconazole levels is possible at higher topiramate doses.
How serious is the interaction between Itraconazole 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 change; monitor antifungal response in serious infections.
What other medicines interact with Itraconazole?
MediHelp also lists interactions of Itraconazole with, for example, Alfuzosin, Alprazolam, Avanafil. The full list is on the Itraconazole page.
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