Drug interactions
Finerenone + Spironolactone
Severity: Major
Finerenone and Spironolactone: major interaction.
Last updated Sources: US FDA label
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
Both drugs are mineralocorticoid receptor antagonists, so combining them provides duplicate therapy and substantially increases the risk of hyperkalemia and renal dysfunction. There is no established benefit from using the two together.
What this interaction means in plain words
Finerenone and Spironolactone can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Finerenone belongs to Cardiovascular; Spironolactone belongs to Cardiovascular.
Why it happens
Additive mineralocorticoid receptor blockade reduces renal potassium excretion.
What to do
Avoid concomitant use and choose one mineralocorticoid receptor antagonist; if a switch is made, check serum potassium and renal function before and after.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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References
Other interactions of Spironolactone
- Amiloride + Spironolactone Contraindicated
- Eplerenone + Spironolactone Contraindicated
- Spironolactone + Triamterene Contraindicated
- Abiraterone + Spironolactone Major
- Aceclofenac + Spironolactone Major
- Acemetacin + Spironolactone Major
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 Spironolactone?
MediHelp rates the interaction as major. Finerenone and Spironolactone can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Both drugs are mineralocorticoid receptor antagonists, so combining them provides duplicate therapy and substantially increases the risk of hyperkalemia and renal dysfunction. There is no established benefit from using the two together.
How serious is the interaction between Finerenone and Spironolactone?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid concomitant use and choose one mineralocorticoid receptor antagonist; if a switch is made, check serum potassium and renal function before and after.
What other medicines interact with Spironolactone?
MediHelp also lists interactions of Spironolactone with, for example, Amiloride, Eplerenone, Triamterene. The full list is on the Spironolactone page.
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