Which is not a beta lactum antibiotic?: (A) Penicillin, (B) Carbepenem, (C) Monobactum, (D) Azithromycin
Answer is D. These are antibiotics having a beta-lactam ring. The two major groups are penicillins and cephalosporins. Monobactams and carbapenems are relatively newer additions. ESSENTIALS OF MEDICAL PHARMACOLOGY page no.716