KnowraPenicillin GLinked fromLinked fromThe 7 pages that link to Penicillin G, each with the reason it gives.All 7Broader topic 1Related 3Compared with 3MethicillinCompared with: Its susceptibility to penicillinase is the problem methicillin was designed to solve.AmpicillinCompared with: Ampicillin covers additional Gram-negative bacteria that are not reliably susceptible to penicillin G.PhenoxymethylpenicillinCompared with: Unlike penicillin V, penicillin G is acid-labile and is generally given parenterally.