the antibiotics were the following : tetracyclines , levomycetin ( chloramphenicol ) , streptomycin , aminoglycosides ( kanamycin , neomycin , monomycin ) , penicillinase sensitive penicillins ( ampicillin , carbenicillin , benzylpenicillin ) .
C0002680
ampicillin
C0030827
benzylpenicillin