What you need to know about: Diuretics
Diuretics are usually prescribed as a first-line treatment for high blood pressure, though many people require additional drugs for blood pressure management, such as beta blockers, ACE inhibitors, or angiotensin-receptor blockers (ARBs). Diuretics help lower blood pressure by reducing the amount of sodium and water in the body. The three main types of diuretics are loop diuretics, thiazide diuretics, and potassium-sparing diuretics. Sometimes a combination of the drugs is prescribed. Side effects include frequent urination, lightheadedness, and fatigue.
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