Losartan 50mg tablets contain losartan potassium, an angiotensin II receptor blocker (ARB) used to treat high blood pressure and protect the kidneys in patients with type 2 diabetes. Each pack contains 30 tablets, with each tablet containing 50mg of the active ingredient. Losartan works by blocking the action of angiotensin II, a natural substance that causes blood vessels to narrow, thereby helping to lower blood pressure. The medication comes in blister packs and should be stored at room temperature away from moisture and heat. This is a prescription-only medication that should be taken as directed by your healthcare provider. The tablets can be taken with or without food, typically once daily or as prescribed by your doctor.