furosemide /fo̅o̅rō″səmīd/ , a loop diuretic. ▪ INDICATIONS: It is prescribed in the treatment of edema caused by congestive heart failure, renal failure, or liver failure and alone or in combination for the treatment of hypertension. ▪ CONTRAINDICATIONS: Anuria, pregnancy, lactation, electrolyte depletion, or known hypersensitivity to this drug or other sulfonylureas prohibits its use. ▪ ADVERSE EFFECTS: Among the more serious adverse effects are fluid and electrolyte imbalances.