Which group of medications is NOT commonly used to treat CHF?

The selection of antibiotics as the group of medications not commonly used to treat congestive heart failure (CHF) is correct because antibiotics are primarily utilized to treat bacterial infections rather than directly addressing the heart's condition or function. CHF management typically focuses on improving heart function, reducing fluid overload, and alleviating symptoms associated with heart failure.

Diuretics are commonly used in CHF to help remove excess fluid from the body, thereby reducing swelling and improving symptoms. Vasodilators are employed to widen blood vessels, decreasing the workload on the heart and improving blood flow. Digitalis, or digoxin, strengthens the heart's contractions and is often prescribed to improve symptoms of heart failure. Each of these medication groups has a well-established role in the clinical management of CHF, while antibiotics do not impact the cardiac function directly and are reserved for treating infections, which might not be a complication of heart failure.