Drug interactions
Canagliflozin + Spironolactone
Severity: Minor
Canagliflozin and Spironolactone: 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
Canagliflozin has been associated with small increases in potassium in some patients, but it is not a classic potassium-sparing drug and may even lower hyperkalemia risk. The main concern with spironolactone is additive volume depletion and hypotension.
What this interaction means in plain words
Canagliflozin and Spironolactone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Canagliflozin belongs to Endocrine; Spironolactone belongs to Cardiovascular.
Why it happens
Additive diuretic and natriuretic effects; any potassium effect of canagliflozin is modest and not well characterized.
What to do
Monitor blood pressure, volume status, renal function and potassium after starting canagliflozin. Reduce the diuretic dose if volume depletion develops.
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 Spironolactone
- Amiloride + Spironolactone Contraindicated
- Eplerenone + Spironolactone Contraindicated
- Spironolactone + Triamterene Contraindicated
- Abiraterone + Spironolactone Major
- Aceclofenac + Spironolactone Major
- Acemetacin + Spironolactone Major
Other interactions of Canagliflozin
Frequently asked questions
Can I take Canagliflozin with Spironolactone?
MediHelp rates the interaction as minor. Canagliflozin and Spironolactone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Canagliflozin has been associated with small increases in potassium in some patients, but it is not a classic potassium-sparing drug and may even lower hyperkalemia risk. The main concern with spironolactone is additive volume depletion and hypotension.
How serious is the interaction between Canagliflozin and Spironolactone?
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 blood pressure, volume status, renal function and potassium after starting canagliflozin. Reduce the diuretic dose if volume depletion develops.
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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