agents have been observed to exhibit such synergy in the following order of activity , from most to least synergistic : ceftazidime , ceftriaxone , moxalactam , aztreonam , cefotaxime , azlocillin , cefoperazone , cefsulodin , and carbenicillin .
C0007561
ceftriaxone
C0007554
cefotaxime