susceptibility tests using 7 antimicrobial agents ( carbenicillin , chloramphenicol , clindamycin , penicillin , cephalothin , metronidazole , and tetracycline ) were run against 35 anaerobes including bacteroides fragilis ( 17 ) , other gram-negative bacilli ( 7 ) , clostridia ( 5 ) , peptococci ( 4 ) , and eubacteria ( 2 ) .
C0006976
carbenicillin
C0030842
penicillin