Losartan is used to treat Diabetic Nephropathy. The generic version is called Losartan potassium. The average Losartan cash price is about $7.75 for a supply of Tablet 25 MG 30 pcs. You can reduce your Losartan cost by up to 75% with our free Losartan discount card. Bring it to a participating pharmacy near you to save on your prescription medication.