Drug interactions
Finerenone + Oxybutynin
Severity: Minor
Finerenone 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
Oxybutynin is a substrate and possibly a weak inhibitor of CYP3A4, so finerenone exposure may be modestly increased. Greater finerenone exposure raises the risk of hyperkalemia and renal function changes.
What this interaction means in plain words
Finerenone 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.
Finerenone belongs to Cardiovascular; Oxybutynin belongs to Genitourinary.
Why it happens
Weak CYP3A4 inhibition may reduce first-pass and systemic metabolism of finerenone.
What to do
Monitor serum potassium and renal function when starting or changing either drug, and adjust finerenone according to potassium results.
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 Finerenone
- Carbamazepine + Finerenone Contraindicated
- Clarithromycin + Finerenone Contraindicated
- Ensitrelvir + Finerenone Contraindicated
- Finerenone + Itraconazole Contraindicated
- Finerenone + Ketoconazole Contraindicated
- Finerenone + Posaconazole Contraindicated
Frequently asked questions
Can I take Finerenone with Oxybutynin?
MediHelp rates the interaction as minor. Finerenone 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. Oxybutynin is a substrate and possibly a weak inhibitor of CYP3A4, so finerenone exposure may be modestly increased. Greater finerenone exposure raises the risk of hyperkalemia and renal function changes.
How serious is the interaction between Finerenone 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: Monitor serum potassium and renal function when starting or changing either drug, and adjust finerenone according to potassium results.
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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