What brand name is Spironolactone commonly known by?

Spironolactone is commonly known by the brand name Aldactone. This medication is a potassium-sparing diuretic primarily used to treat conditions such as heart failure, hypertension, and edema. It works by inhibiting the action of aldosterone, a hormone that can lead to fluid retention and increased blood pressure.

The other options listed represent different medications. For instance, Lasix is the brand name for furosemide, a loop diuretic; Hydrochlorothiazide is a thiazide diuretic that treats high blood pressure and fluid retention; and Torsemide is another loop diuretic, similar to Lasix, but it is not related to spironolactone's mechanism of action. Thus, Aldactone is the correct and recognized brand name of spironolactone among the choices provided.