Drug interactions
Conivaptan + Docetaxel
Severity: Moderate
Conivaptan and Docetaxel: moderate 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 docetaxel levels. Docetaxel toxicity such as neutropenia could increase. Conivaptan is used short term in hospital, which limits exposure.
What this interaction means in plain words
Conivaptan and Docetaxel can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Conivaptan inhibits CYP3A4, reducing docetaxel clearance.
What to do
Monitor blood counts and toxicity for the duration of conivaptan therapy. Consider delaying docetaxel until conivaptan is finished.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Docetaxel
Frequently asked questions
Can I take Conivaptan with Docetaxel?
MediHelp rates the interaction as moderate. Conivaptan and Docetaxel can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Conivaptan is a CYP3A4 inhibitor and may raise docetaxel levels. Docetaxel toxicity such as neutropenia could increase. Conivaptan is used short term in hospital, which limits exposure.
How serious is the interaction between Conivaptan and Docetaxel?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood counts and toxicity for the duration of conivaptan therapy. Consider delaying docetaxel until conivaptan is finished.
What other medicines interact with Docetaxel?
MediHelp also lists interactions of Docetaxel with, for example, Adenovirus types 4 and 7 live, Atazanavir, Belatacept. The full list is on the Docetaxel page.
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