noun. a diuretic (trade names Hygroton and Thalidone) used to control hypertension and conditions that cause edema; effective in lowering blood pressure to prevent heart attacks

"For patients who have a systolic blood pressure 20 mm Hg or more over the target, either a thiazide-like diuretic -- such as chlorthalidone -- or a calcium channel blocker should be added."

diuretic  diuretic drug  water pill