Antibacterial drugs Agents against streptococcal(链球菌) infections Penicillins(青霉素类): penicillin G( benzylpenicillin,苄青霉素) Cephalosporins(头孢菌素类) Macrolides(大环内酯类): erythromycin(红霉素 · Lincomycins(林可霉素类) Quinolones喹诺酮类) · Sulfonamides(磺胺类)Antibacterial drugs • Agents against streptococcal （链球菌）infections • Penicillins （青霉素类）：penicillin G (benzylpenicillin, 苄青霉素) • Cepharosporins（头孢菌素类） • Macrolides（大环内酯类）：erythromycin (红霉素) • Lincomycins（林可霉素类） • Quinolones (喹诺酮类) • Sulfonamides (磺胺类)