Final answer:
The medication most likely causing breast enlargement and tenderness in a male patient is Spironolactone (Aldactone), due to its anti-androgen effects.
C is correct
Step-by-step explanation:
If a male patient is experiencing breast enlargement and tenderness while on medication, the most likely medication causing this symptom is Spironolactone (Aldactone). Spironolactone is a potassium-sparing diuretic that is used to treat conditions such as hypertension and heart failure. However, it is also known to have anti-androgen effects, which means it can block the effects of male hormones like testosterone, potentially leading to side effects like gynecomastia (breast enlargement) and tenderness.
While the other medications listed, such as Chlorthalidone (Hygroton), Furosemide (Lasix), and Hydrochlorothiazide, are diuretics used to treat hypertension, they work differently and are less likely to cause breast enlargement. Diuretics are often prescribed for the management of high blood pressure because they help to eliminate excess sodium and water from the body, thereby reducing the volume of fluid that the heart must pump, which can lower blood pressure.