minimal inhibitory concentrations ( mics ) of penicillin g , cefamandole , tetracycline , clindamycin and metronidazole were determined against 42 isolates of anaerobic bacteria . metronidazole was the most active antimicrobial agent against all anaerobic bacteria tested and especially against the bacteroides fragilis group ( mics for all strains ranged from less than equal to 0.5 to 4 micrograms/ml ) .
C0025872
metronidazole
C1136254
antimicrobial agent