Hydrochlorothiazide

Hydrochlorothiazide (HCTZ) is a common "water pill" (diuretic) used to treat high blood pressure (hypertension) and fluid retention (edema) from heart, liver, or kidney issues by making the kidneys excrete extra salt and water, reducing blood volume and lowering blood pressure. As a thiazide diuretic, it works by blocking sodium reabsorption in the kidneys, leading to increased urine output, and is available in tablet form, often combined with other blood pressure medications