Drug interactions
Cinacalcet + Conivaptan
Severity: Minor
Cinacalcet and Conivaptan: 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
Conivaptan is a CYP3A4 inhibitor and may raise cinacalcet levels. Conivaptan is used only short term intravenously, so the effect is likely limited.
What this interaction means in plain words
Cinacalcet and Conivaptan 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
Inhibition of CYP3A4-mediated cinacalcet metabolism.
What to do
Monitor serum calcium for symptoms of hypocalcemia during conivaptan infusion. Dose changes are rarely 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 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 Conivaptan?
MediHelp rates the interaction as minor. Cinacalcet and Conivaptan have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Conivaptan is a CYP3A4 inhibitor and may raise cinacalcet levels. Conivaptan is used only short term intravenously, so the effect is likely limited.
How serious is the interaction between Cinacalcet and Conivaptan?
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 serum calcium for symptoms of hypocalcemia during conivaptan infusion. Dose changes are rarely needed.
What other medicines interact with Cinacalcet?
MediHelp also lists interactions of Cinacalcet with, for example, Etelcalcetide, Eliglustat, Metoclopramide. The full list is on the Cinacalcet page.
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