Furosemide-Induced Bullous Pemphigoid Management

Alternative Diuretic Selection

The American Heart Association recommends considering alternative diuretic classes, such as aldosterone antagonists (spironolactone, eplerenone) or thiazide diuretics, as they have different chemical structures and mechanisms 1, 2.
The American College of Cardiology suggests that aldosterone antagonists are recommended as first-line diuretic therapy in many conditions, including heart failure and cirrhosis with ascites 3.

Torsemide may be the safest alternative among loop diuretics due to its superior oral bioavailability and longer duration of action (12-16 hours) compared to furosemide (6-8 hours) 1, 2.
The American College of Cardiology recommends initiating torsemide at the lowest possible dose (10 mg once daily) and monitoring intensively for any cutaneous manifestations 2.

The American Heart Association suggests that using aldosterone antagonists with thiazides can often achieve adequate diuresis without requiring loop diuretics 1, 3.
Combination therapy with spironolactone (starting 50-100 mg daily, maximum 400 mg daily) and hydrochlorothiazide (25 mg once or twice daily) can provide effective diuresis in most clinical scenarios 1, 3.
The American Thoracic Society recommends sequential nephron blockade with metolazone plus thiazide diuretics as another loop-sparing strategy for refractory fluid retention 1.