Final answer:
The therapeutic advantage of penicillin V over penicillin G is greater absorption when given orally, as penicillin V is stable in the stomach's acidic environment.
Step-by-step explanation:
The therapeutic advantage of penicillin V over penicillin G is its greater absorption when given orally. Penicillin G is unstable in the acidic environment of the stomach, leading to its inactivation, whereas penicillin V is acid-stable and can be effectively absorbed when given as an oral medication. This improved absorption makes penicillin V more suitable for oral administration, whereas penicillin G requires intravenous or intramuscular injection.