Displaying 6 results of Losartan Potassium Impurities Losartan Potassium is a medication used for treating high blood pressure and preventing stroke. However, the manufacturing of the drug can sometimes result in the formation of impurities that can be harmful to human health. These impurities include N-nitrosodimethylamine (NDMA) and N-Nitrosodiethylamine (NDEA), which are classified as probable human carcinogens. The presence of these impurities has led to several recalls of Losartan Potassium products by pharmaceutical companies across the globe.