Bumetanide belongs to the group of medicines known as loop diuretics. A diuretic is a medicine which increases the amount of urine that you pass out from your kidneys. They are often referred to as 'water' tablets. Bumetanide is used to treat water retention (oedema), which is commonly caused by heart failure.
This is a companion discussion topic for the original article at https://patient.info/medicine/bumetanide-tablets-and-liquid-medicine