Answer:
Aldactone® or spironolactone is a potassium-sparing drug because it allows potassium to be reabsorbed into the blood.
Explanation:
Spironolactone is a diuretic drug that promotes urine production, and has the added benefit of preventing potassium loss by promoting the reabsorption of this potassium into the proximal contoured tubules of the kidney.
Unlike spironolactone, other diuretics —such as Furosemide— allow potassium loss and an imbalance of blood potassium levels occurs.
The other options are not correct because: