Which medications in the drug class Aldosterone Antagonists, Selective are used in the treatment of Primary Aldosteronism?

Updated: Mar 24, 2020
  • Author: Gabriel I Uwaifo, MD; Chief Editor: Romesh Khardori, MD, PhD, FACP  more...
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Answer

Aldosterone Antagonists, Selective

These agents compete with aldosterone receptor sites, reducing edema and ascites.

Spironolactone (Aldactone)

Spironolactone competitively binds receptors at the aldosterone-dependent sodium-potassium exchange site in the distal convoluted renal tubule. It provides diuretic and antihypertensive effects, causing increased excretion of sodium and water, while retaining potassium. Spironolactone is administered alone or with a diuretic agent that acts on the proximal renal tubule. Spironolactone may block the effects of aldosterone on arteriolar smooth muscles.

Eplerenone (Inspra)

Eplerenone selectively blocks aldosterone at the mineralocorticoid receptors in epithelial (eg, kidney) and nonepithelial (eg, heart, blood vessels, brain) tissues, thus decreasing blood pressure and sodium reabsorption.


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