Congestive Heart Failure Home > Aldactone

Aldactone is a type of diuretic that is used for treating high blood pressure, water retention, heart failure, and low potassium levels. It can also be used to diagnose and treat primary hyperaldosteronism. The drug, which is available by prescription, comes in tablet form and is generally taken once or twice daily. Potential side effects include diarrhea, fever, and drowsiness.

What Is Aldactone?

Aldactone® (spironolactone) is a prescription medicine that is used as a diuretic for various conditions. It is known as a "potassium-sparing" diuretic.

Who Makes Aldactone?

Brand-name Aldactone is made by Pfizer. Generic Aldactone is made by a few different manufacturers.

What Is It Used For?

Specific uses of this medication include:
  • Treating low levels of potassium in the blood (hypokalemia)
  • Decreasing the risk for hospitalization or death in people with severe heart failure.
(Click Aldactone Uses for more information on what Aldactone is used for, including possible off-label uses.)
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Last reviewed by: Kristi Monson, PharmD;
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