Drug interactions
Darunavir + Topiramate
Severity: Minor
Darunavir 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 could modestly lower darunavir exposure. The clinical effect is probably small, but reduced antiviral exposure could in theory contribute to virologic failure.
What this interaction means in plain words
Darunavir 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.
Darunavir belongs to Anti Virals; Topiramate belongs to Central Nervous System.
Why it happens
Weak induction of CYP3A4 by topiramate may increase the metabolism of darunavir.
What to do
No empirical dose change is needed; monitor HIV viral load as part of routine care, especially when topiramate is given at higher 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 Topiramate
Other interactions of Darunavir
- Alfuzosin + Darunavir Contraindicated
- Avanafil + Darunavir Contraindicated
- Darunavir + Dronedarone Contraindicated
- Darunavir + Eletriptan Contraindicated
- Darunavir + Ergotamine Contraindicated
- Darunavir + Flibanserin Contraindicated
Frequently asked questions
Can I take Darunavir with Topiramate?
MediHelp rates the interaction as minor. Darunavir 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 could modestly lower darunavir exposure. The clinical effect is probably small, but reduced antiviral exposure could in theory contribute to virologic failure.
How serious is the interaction between Darunavir 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 empirical dose change is needed; monitor HIV viral load as part of routine care, especially when topiramate is given at higher doses.
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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