however , in the presence of clavulanic acid , 45 and 43 strains became susceptible ( mic less than or equal to 4 mg/l ) to ampicillin and carbenicillin respectively whilst 27 , 37 and 35 strains became susceptible ( mic less than or equal to 4 mg/l ) to mezlocillin , azlocillin and piperacillin .
C0002680
ampicillin
C0004499
azlocillin