clavulanic acid ( 2.0 micrograms/ml ) lowered the minimal inhibitory concentrations ( mics ) of ceftizoxime and cefotaxime against 49 strains of the bacteroides fragilis group by a mean of 4.0 and 3.4 log2 concentrations , respectively .
C0007560
ceftizoxime
C0007554
cefotaxime