Drug interactions
Cinacalcet + Topiramate
Severity: Minor
Cinacalcet 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
Cinacalcet is metabolized by several CYP enzymes including CYP3A4, and topiramate is a weak CYP3A4 inducer. Any reduction in cinacalcet exposure is expected to be small.
What this interaction means in plain words
Cinacalcet 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.
Cinacalcet belongs to Miscellaneous; Topiramate belongs to Central Nervous System.
Why it happens
Weak CYP3A4 induction by topiramate may increase cinacalcet metabolism.
What to do
No empirical dose change is needed. Monitor serum calcium and PTH and adjust cinacalcet based on results.
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 Cinacalcet
- Cinacalcet + Etelcalcetide Contraindicated
- Cinacalcet + Eliglustat Major
- Cinacalcet + Metoclopramide Major
- Cinacalcet + Metoclopramide intranasal Major
- Cinacalcet + Tamoxifen Major
- Abiraterone + Cinacalcet Moderate
Frequently asked questions
Can I take Cinacalcet with Topiramate?
MediHelp rates the interaction as minor. Cinacalcet 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. Cinacalcet is metabolized by several CYP enzymes including CYP3A4, and topiramate is a weak CYP3A4 inducer. Any reduction in cinacalcet exposure is expected to be small.
How serious is the interaction between Cinacalcet 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 serum calcium and PTH and adjust cinacalcet based on results.
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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