Magnesium salicylate (NSAID)/caffeine. The gentle diuretic. Lose excess body water. Bloat; puffiness; water weight gain; related fatigue. Helps reduce excess body water and relieve related menstrual discomforts. Prompt, effective. The bloat medicine. The active ingredient in Diurex Water Pills has been recognized to be safe and effective by an FDA expert advisory panel when used as directed. Magnesium Content: 20 mg/pill. Calcium Content: 10 mg/pill. Made in USA.