Drug interactions
Eslicarbazepine + Oxybutynin
Severity: Minor
Eslicarbazepine 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
Eslicarbazepine is a weak inducer of CYP3A4 and may modestly lower oxybutynin exposure. Reduced antimuscarinic effect is possible but is unlikely to be clinically important in most patients.
What this interaction means in plain words
Eslicarbazepine 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.
Eslicarbazepine belongs to Central Nervous System; Oxybutynin belongs to Genitourinary.
Why it happens
Weak CYP3A4 induction by eslicarbazepine increases first-pass and systemic metabolism of oxybutynin.
What to do
No routine adjustment is needed. If bladder symptoms worsen after eslicarbazepine is started, consider titrating the oxybutynin dose.
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 Eslicarbazepine
- Eslicarbazepine + Mavacamten Contraindicated
- Eslicarbazepine + Rilpivirine Contraindicated
- Artemether / lumefantrine + Eslicarbazepine Major
- Avapritinib + Eslicarbazepine Major
- Bedaquiline + Eslicarbazepine Major
- Benzhydrocodone / acetaminophen + Eslicarbazepine Major
Frequently asked questions
Can I take Eslicarbazepine with Oxybutynin?
MediHelp rates the interaction as minor. Eslicarbazepine 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. Eslicarbazepine is a weak inducer of CYP3A4 and may modestly lower oxybutynin exposure. Reduced antimuscarinic effect is possible but is unlikely to be clinically important in most patients.
How serious is the interaction between Eslicarbazepine 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. If bladder symptoms worsen after eslicarbazepine is started, consider titrating the oxybutynin dose.
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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