Drug interactions
Isradipine + Topiramate
Severity: Minor
Isradipine 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
Isradipine is a CYP3A4 substrate, and topiramate's weak induction could slightly reduce its concentration and blood pressure effect. The change is expected to be small.
What this interaction means in plain words
Isradipine 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.
Why it happens
Weak CYP3A4 induction by topiramate may increase isradipine metabolism.
What to do
Monitor blood pressure after starting or stopping topiramate and adjust isradipine dose if control changes.
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
Frequently asked questions
Can I take Isradipine with Topiramate?
MediHelp rates the interaction as minor. Isradipine 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. Isradipine is a CYP3A4 substrate, and topiramate's weak induction could slightly reduce its concentration and blood pressure effect. The change is expected to be small.
How serious is the interaction between Isradipine 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 after starting or stopping topiramate and adjust isradipine dose if control changes.
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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