the in vitro activity of azthreonam - a monocyclic beta-lactam antibiotic - was compared with the activities of ampicillin , cephalothin , cefuroxime , cefotaxime , cefoperazone , lamoxactam , ceftazidime , and n-formimidoyl thienamycin against 249 clinical isolates of gram-negative bacilli .
C0007562
cefuroxime
C0007554
cefotaxime