Elisartan is primarily used in the treatment of hypertension, helping to manage high blood pressure effectively. It works by blocking the action of angiotensin II, a substance that narrows blood vessels, thereby relaxing and widening the vessels to improve blood flow. This reduction in blood pressure helps decrease the risk of strokes, heart attacks, and kidney problems. Elisartan is often prescribed for patients who may not respond well to other antihypertensive medications, offering a suitable alternative with a favorable side effect profile. Additionally, it is sometimes used in patients with heart failure to improve cardiac function and overall cardiovascular health.