Spironolactone 25mg Tablet is a medicine known as a diuretic (water pill). It is mainly used in the treatment of heart failure and high blood pressure. It reduces the swelling (edema) caused by some other conditions. This medicine is also used to treat low potassium levels in the body (hypokalemia). Spironolactone is a potassium-sparing diuretic. It lowers blood pressure and swelling by removing the extra water and electrolytes from the body without loss of potassium. should be taken with food at the same time each day to get the most benefit. Taking it early in the day can help prevent you from having to get up at night to go to the toilet frequently, You should keep using this medicine as it has been prescribed, even if you feel well. If you stop taking it, your condition may get worse. Follow your doctor's advice about the type and amount of liquids you should drink. If you are being treated for high blood pressure, The common side effects include nausea, vomiting, dizziness and swelling, or tenderness of your breasts (men and women). If these bother you, or appear serious, let your doctor know. While using this medicine, you may be advised to limit your intake of salt or salt substitutes, and you should have your blood pressure checked frequently. Some other tests like kidney function (e.g., creatinine) and potassium levels will be done to monitor your progress..