Aldosterone Receptor Antagonists are a class of medications that block the action of aldosterone, a hormone produced by the adrenal glands. Aldosterone helps regulate blood pressure and fluid balance by promoting sodium retention and potassium excretion. By inhibiting this hormone, these antagonists help lower blood pressure and reduce fluid buildup in conditions like heart failure and hypertension. Common examples of Aldosterone Receptor Antagonists include spironolactone and eplerenone. These drugs are often used in combination with other medications to enhance their effectiveness. They can also help protect the heart and kidneys from damage in patients with certain chronic conditions.