Drug interactions
Conivaptan + Nimodipine
Severity: Moderate
Conivaptan and Nimodipine: 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 nimodipine concentrations. This raises the risk of hypotension and other vasodilatory effects.
What this interaction means in plain words
Conivaptan and Nimodipine 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
CYP3A4 inhibition by conivaptan decreases nimodipine metabolism.
What to do
Monitor blood pressure during the conivaptan infusion. Reduce the nimodipine dose if hypotension develops.
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 Nimodipine
- Apalutamide + Nimodipine Major
- Carbamazepine + Nimodipine Major
- Ceritinib + Nimodipine Major
- Clarithromycin + Nimodipine Major
- Cobicistat + Nimodipine Major
- Darunavir + Nimodipine Major
Frequently asked questions
Can I take Conivaptan with Nimodipine?
MediHelp rates the interaction as moderate. Conivaptan and Nimodipine 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 nimodipine concentrations. This raises the risk of hypotension and other vasodilatory effects.
How serious is the interaction between Conivaptan and Nimodipine?
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 pressure during the conivaptan infusion. Reduce the nimodipine dose if hypotension develops.
What other medicines interact with Nimodipine?
MediHelp also lists interactions of Nimodipine with, for example, Apalutamide, Carbamazepine, Ceritinib. The full list is on the Nimodipine page.
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