Spironolactone (Aldactone®), a "potassium-sparing" diuretic, is licensed for many uses, including but not limited to:
- Diagnosing and treating primary hyperaldosteronism (overproduction of the hormone aldosterone)
- Decreasing the risk of hospitalization or death in people with severe heart failure
- Controlling high blood pressure (hypertension).
How does it work? Spironolactone increases the amount of salt and water that the kidneys remove from the blood. This ultimately causes a decrease in blood volume, which helps lower blood pressure and reduce water retention.
Before starting treatment, make sure your healthcare provider is aware of any other medications you are taking and any other medical conditions you have. This will help him or her determine if spironolactone is right for you.
(To learn more about this medication, including dosing guidelines, possible side effects, and other important information for your healthcare provider, click Spironolactone.)