Losartan

Drug Details

Losartan, also known by its brand name Cozaar, is primarily used to manage high blood pressure (hypertension) and protect against kidney damage caused by diabetes. It also reduces the risk of strokes in patients with hypertension and an enlarged heart. As a member of the angiotensin II receptor blockers (ARBs) class, Losartan functions by inhibiting the hormone angiotensin II from binding to its receptors. This action relaxes the blood vessels, facilitating easier blood flow, and reduces blood pressure. Additionally, it prevents the release of aldosterone, a hormone that can cause water retention, and limits the kidneys' reabsorption of sodium and water. Losartan is typically taken orally once a day and is available in a cost-effective generic form. Some common side effects may include dizziness, fatigue, and upper respiratory infections.