rn In the event that its not all that much inconvenience advise your specialist before taking any arrangement. Non particular Name: losartan (loe SAR tan) Brand Names: Cozaar What is losartan? Losartan is in a social occasion of pharmaceuticals called angiotensin II receptor adversaries. Losartan keeps veins from narrowing, which cuts down beat and upgrades circulatory system. Losartan is used to treat (hypertension) and to lessen the risk of stroke in people with hypertension. Losartan is furthermore used to treat kidney issues in people with sort 2 diabetes. Losartan may in like manner be used for purposes other than those recorded in this medication guide.