Drug interactions
Nisoldipine + Topiramate
Severity: Minor
Nisoldipine 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
Nisoldipine is highly dependent on CYP3A4 and intestinal first-pass metabolism, so even weak induction by topiramate could lower its exposure. This could reduce blood pressure control.
What this interaction means in plain words
Nisoldipine 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.
Nisoldipine belongs to Cardiovascular; Topiramate belongs to Central Nervous System.
Why it happens
Weak CYP3A4 induction by topiramate increases first-pass metabolism of nisoldipine.
What to do
Monitor blood pressure when topiramate is started or the dose is raised and titrate nisoldipine as needed.
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 Nisoldipine
- Itraconazole + Nisoldipine Contraindicated
- Ketoconazole + Nisoldipine Contraindicated
- Apalutamide + Nisoldipine Major
- Carbamazepine + Nisoldipine Major
- Chloramphenicol + Nisoldipine Major
- Clarithromycin + Nisoldipine Major
Frequently asked questions
Can I take Nisoldipine with Topiramate?
MediHelp rates the interaction as minor. Nisoldipine 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. Nisoldipine is highly dependent on CYP3A4 and intestinal first-pass metabolism, so even weak induction by topiramate could lower its exposure. This could reduce blood pressure control.
How serious is the interaction between Nisoldipine 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: Monitor blood pressure when topiramate is started or the dose is raised and titrate nisoldipine as needed.
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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