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Drug interactions

Sunitinib + Topiramate

Severity: Minor

Sunitinib 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

Sunitinib is metabolised by CYP3A4, and inducers can lower exposure of sunitinib and its active metabolite. Topiramate is a weak inducer, so the reduction is likely small.

What this interaction means in plain words

Sunitinib 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.

Sunitinib belongs to Oncology; Topiramate belongs to Central Nervous System.

Evidence level: Low

Why it happens

Weak CYP3A4 induction by topiramate may increase sunitinib clearance.

What to do

No empirical dose adjustment is needed; monitor treatment response and adverse effects.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Sunitinib with Topiramate?

MediHelp rates the interaction as minor. Sunitinib 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. Sunitinib is metabolised by CYP3A4, and inducers can lower exposure of sunitinib and its active metabolite. Topiramate is a weak inducer, so the reduction is likely small.

How serious is the interaction between Sunitinib 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 adjustment is needed; monitor treatment response and adverse effects.

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.

Full monographs, dosing and an interaction checker in the MediHelp app

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