Act on the kidneys to remove extra fluid and salt or sodium from the body. They help make breathing easier and reduce swelling in ankles, legs, and feet. Certain diuretics make your body lose potassium and require you to take potassium supplementation.

Names of medicines in this group:

Bumetanide (Bumex)
Furosemide (Lasix)
Hydrochlorothiazide (HCTZ)
Metolazone (Zaroxolyn)
Torsemide (Demadex)

Side effects include dizziness, weakness, and muscle cramps.