Spironolactone
A prescription potassium-sparing diuretic used to treat conditions including edema, high blood pressure, and heart failure.
What it is
Spironolactone is a potassium-sparing diuretic (water pill) prescribed for conditions such as edema, hypertension, and heart failure. Unlike some other diuretics, it works in a way that causes the body to retain potassium rather than lose it, which is the basis for its interaction with potassium supplements.
Known interaction categories
- Insufficient evidence
- Avoid combining
- Use caution
Published interaction pages on this site
- Spironolactone and IronInsufficient evidence
- Spironolactone and PotassiumAvoid combining
- Spironolactone and CalciumInsufficient evidence
- Spironolactone and CoQ10 (Coenzyme Q10)Insufficient evidence
- Spironolactone and CiprofloxacinInsufficient evidence
- Spironolactone and MagnesiumInsufficient evidence
- Spironolactone and CreatineInsufficient evidence
- Spironolactone and CaffeineInsufficient evidence
- Spironolactone and Vitamin KInsufficient evidence
- Spironolactone and LevothyroxineInsufficient evidence
- Spironolactone and TurmericInsufficient evidence
- Spironolactone and WarfarinInsufficient evidence
- Spironolactone and St. John's WortInsufficient evidence
- Spironolactone and CopperInsufficient evidence
- Spironolactone and SertralineInsufficient evidence
- Spironolactone and MelatoninInsufficient evidence
- Spironolactone and MetforminInsufficient evidence
- Spironolactone and ProbioticsInsufficient evidence
- Spironolactone and Vitamin DInsufficient evidence
- Spironolactone and ZincInsufficient evidence
- Spironolactone and DoxycyclineInsufficient evidence
- Spironolactone and OmeprazoleInsufficient evidence
- Spironolactone and Vitamin B12Insufficient evidence
- Spironolactone and AtorvastatinInsufficient evidence
- Spironolactone and LisinoprilUse caution
Sources
Last reviewed 2026-08-22
Medical information disclaimer: this information is general and educational. It does not diagnose conditions, prescribe treatment, or determine whether a combination is safe for you personally. Follow your prescription label and ask a pharmacist or clinician before starting, stopping, or combining products. Full disclaimer.