Spironolactone is used to remove extra water and salt from the body, but it does not get rid of potassium like the other diuretics. It can also be used as a heart failure therapy. This medicine might make you need to urinate more often.

Common side effects:

  • Stomach cramps
  • Dry mouth
  • Excessive thirst
  • Dizziness
  • Headache
  • Enlarged breast tissue
  • Breast pain and irregular menstrual periods (women)