Penicillin G is a widely used antibiotic that is most commonly used to treat bacterial infections. However, there are several other names for this potent drug. One such synonym is benzylpenicillin, which indicates that the drug contains the benzyl group as an addition to the penicillin structure. Another synonym for penicillin G is penicillin V, which is similar in structure but has a different bioavailability and is often used to treat a wider range of bacterial infections. Other synonyms include penicillin G procaine, which is an injectable form, and penicillin G potassium, which is a water-soluble salt used in intravenous administration. Overall, penicillin G remains a critical antibiotic and is essential in treating a wide range of infections.