FUROSEMIDUM / Frusemide is used in dogs and cats to promote diuresis and manage fluid retention. It is commonly used to treat pulmonary edema due to CHF. Other uses include diuresis in acute renal failure, management of ascites, hypercalcemia, or hyperkalemia. Horses: Furosemide is used in general equine practice to manage fluid retention and edema. It is commonly used in racehorses to reduce the incidence of exercise-induced pulmonary hemorrhage (EIPH) and epistaxis.