Drug interactions
Conivaptan + Diazepam
Severity: Moderate
Conivaptan and Diazepam: 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 increase diazepam exposure, leading to deeper or longer sedation. The interaction is inferred mainly from the inhibition profile of conivaptan.
What this interaction means in plain words
Conivaptan and Diazepam 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
Inhibition of CYP3A4-mediated diazepam metabolism.
What to do
Monitor sedation and respiratory status during conivaptan infusion and consider a lower diazepam dose.
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 Diazepam
Frequently asked questions
Can I take Conivaptan with Diazepam?
MediHelp rates the interaction as moderate. Conivaptan and Diazepam 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 increase diazepam exposure, leading to deeper or longer sedation. The interaction is inferred mainly from the inhibition profile of conivaptan.
How serious is the interaction between Conivaptan and Diazepam?
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 sedation and respiratory status during conivaptan infusion and consider a lower diazepam dose.
What other medicines interact with Diazepam?
MediHelp also lists interactions of Diazepam with, for example, Calcium / magnesium / potassium / sodium oxybates, Alfentanil, Alprazolam. The full list is on the Diazepam page.
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