among the cephalosporins tested , lamoxactam ( cl 90 : 1 mg/l ) was the most active , followed by cefotaxime ( 22.7 mg/l ) , cefoxitin ( 23 mg/l ) , ceftriaxone ( 51.2 mg/l ) and ceftazidime ( 347 mg/l ) .
C0007554
cefotaxime
C0007561
ceftriaxone