Thompson Nutritional Diuretic Ii 60 capsules-Herbal Formula with potassium.For adults only Diuretics are a family of drugs that promote urination. They are used to reduce water accumulation or edema associated with heart failure, cirrhosis, and corticosteroid therapy, as well as to treat high blood pressure. Diuretics are classified as potassium-depleting if they cause loss of potassium in the urine, or potassium-sparing if they cause retention of potassium.