Drug interactions
Oxcarbazepine + Oxybutynin
Severity: Minor
Oxcarbazepine and Oxybutynin: minor 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 CYP3A4 inducer and may modestly reduce oxybutynin levels. The effect is unlikely to matter in most patients.
What this interaction means in plain words
Oxcarbazepine and Oxybutynin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Oxcarbazepine belongs to Central Nervous System; Oxybutynin belongs to Genitourinary.
Why it happens
Weak CYP3A4 induction by oxcarbazepine increases oxybutynin metabolism.
What to do
No routine adjustment is needed. Reassess bladder symptom control if the response declines.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Oxybutynin
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 Oxcarbazepine with Oxybutynin?
MediHelp rates the interaction as minor. Oxcarbazepine and Oxybutynin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Oxcarbazepine is a weak CYP3A4 inducer and may modestly reduce oxybutynin levels. The effect is unlikely to matter in most patients.
How serious is the interaction between Oxcarbazepine and Oxybutynin?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine adjustment is needed. Reassess bladder symptom control if the response declines.
What other medicines interact with Oxybutynin?
MediHelp also lists interactions of Oxybutynin with, for example, Bethanechol, Clozapine, Potassium chloride. The full list is on the Oxybutynin page.
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