Penicillin G is a narrow spectrum antibiotic.Active against gram-positive and gram-negative aerobic and anaerobic bacteriaInhibits cell wall synthesisStable against hydrolysis by β-lactamases, such as penicillinases and cephalosporinases The drug of choice for Streptococcus pneumoniae, groups A, B, C and G streptococci, nonenterococcal group D streptococci, viridans group streptococci, and non-penicillinase producing staphylococcus. Penicillin G potassium salt is used to study murosomes of...