Which diuretic is most commonly used for treating heart failure?

Lasix, or furosemide, is the most commonly used diuretic for treating heart failure due to its strong efficacy in promoting diuresis, or increased urine production. Furosemide works primarily by inhibiting the sodium-potassium-chloride symporter in the loop of Henle in the kidneys, leading to a significant reduction in fluid retention and alleviation of symptoms associated with heart failure.

The rapid onset of action offered by furosemide makes it particularly useful in cases where immediate diuresis is necessary, such as in the management of acute pulmonary edema or exacerbations of chronic heart failure. Additionally, furosemide helps to reduce blood pressure and decrease the workload on the heart by reducing fluid overload, which is a critical aspect in managing heart failure.

While other diuretics, such as hydrochlorothiazide, spironolactone, and bumetanide, have their own roles in the management of heart failure, furosemide remains the go-to choice due to its potency and speed of action.