Drug interactions
Conivaptan + Oxcarbazepine
Severity: Moderate
Conivaptan and Oxcarbazepine: 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 substrate and oxcarbazepine may reduce its levels. Both drugs affect sodium, with oxcarbazepine often causing hyponatremia, so the clinical picture is complicated.
What this interaction means in plain words
Conivaptan and Oxcarbazepine 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
Oxcarbazepine induces CYP3A4, increasing conivaptan metabolism.
What to do
Monitor serum sodium frequently and the response to conivaptan. Adjust therapy according to sodium trends.
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 Oxcarbazepine
- Cabotegravir + Oxcarbazepine Contraindicated
- Oxcarbazepine + Rilpivirine Contraindicated
- Artemether / lumefantrine + Oxcarbazepine Major
- Atazanavir + Oxcarbazepine Major
- Benzhydrocodone / acetaminophen + Oxcarbazepine Major
- Bictegravir + Oxcarbazepine Major
Frequently asked questions
Can I take Conivaptan with Oxcarbazepine?
MediHelp rates the interaction as moderate. Conivaptan and Oxcarbazepine 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 substrate and oxcarbazepine may reduce its levels. Both drugs affect sodium, with oxcarbazepine often causing hyponatremia, so the clinical picture is complicated.
How serious is the interaction between Conivaptan and Oxcarbazepine?
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 serum sodium frequently and the response to conivaptan. Adjust therapy according to sodium trends.
What other medicines interact with Oxcarbazepine?
MediHelp also lists interactions of Oxcarbazepine with, for example, Cabotegravir, Rilpivirine, Artemether / lumefantrine. The full list is on the Oxcarbazepine page.
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