Drug interactions
Darifenacin + Oxcarbazepine
Severity: Moderate
Darifenacin 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
Oxcarbazepine is a weak-to-moderate CYP3A4 inducer and may lower darifenacin exposure. Symptom control may be reduced.
What this interaction means in plain words
Darifenacin 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.
Darifenacin belongs to Genitourinary; Oxcarbazepine belongs to Central Nervous System.
Why it happens
Oxcarbazepine induces CYP3A4, increasing darifenacin metabolism.
What to do
Monitor bladder symptom control and adjust darifenacin within the labeled dose range. Consider an alternative if the response is inadequate.
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 Darifenacin
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 Darifenacin with Oxcarbazepine?
MediHelp rates the interaction as moderate. Darifenacin 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. Oxcarbazepine is a weak-to-moderate CYP3A4 inducer and may lower darifenacin exposure. Symptom control may be reduced.
How serious is the interaction between Darifenacin 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 bladder symptom control and adjust darifenacin within the labeled dose range. Consider an alternative if the response is inadequate.
What other medicines interact with Darifenacin?
MediHelp also lists interactions of Darifenacin with, for example, Atazanavir, Bethanechol, Clarithromycin. The full list is on the Darifenacin page.
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