n-f-thienamycin and ceftazidime were more active than cefotaxime , ceftriaxone and latamoxef only against carbenicillin-susceptible isolates : isolates resistant to carbenicillin exhibited markedly increased resistance to cefoperazone , but not to n-f-thienamycin or ceftazidime .
C0007554
cefotaxime
C0007561
ceftriaxone