4. Diuretics
The kidneys get rid of excess fluids throughout the day by pumping unneeded minerals into tiny tubules that pass urine out of the body. Water follows the mineral atoms by the process of osmosis.
Furosemide, a potent diuretic, increases the volume of urine by increasing the amount of minerals in urine, specifically sodium, potassium, and chloride. With less fluids in the body, the heart has less work to do, and thus can pump more effectively.