Losartan potassium is a type of angiotensin receptor blocker (ARB) known by the brand name Cozaar. Doctors prescribe it to treat hypertension and nephropathy, which is damage to the kidneys, in people with type 2 diabetes.
Doctors most commonly prescribe losartan potassium to treat hypertension in adults and children over 6 years of age.
For many people, lifestyle changes, such as diet, exercise, and avoiding smoking and alcohol, are sufficient to reduce blood pressure to healthy levels. Others may need medication to control their blood pressure.