Eplerenone, sold under the brand name Inspra, is a steroidal antimineralocorticoid of the spirolactone group that is used to treat chronic heart failure and high blood pressure, particularly for patients with resistant hypertension due to elevated aldosterone. Classed as a selective aldosterone receptor antagonist (SARA), it is similar to the diuretic spironolactone, though it is much more selective for the mineralocorticoid receptor in comparison (i.e., does not possess any antiandrogen, progestogen, glucocorticoid, or estrogenic effects), and is specifically marketed for reducing cardiovascular risk in patients following myocardial infarction. Eplerenone is a potassium-sparing diuretic, meaning that it helps the body get rid of water but still keep potassium.