on the basis of minimal inhibitory concentration breakpoints that have been used to categorize susceptibility for most of these drugs , the organisms were susceptible to rifampin , cefoxitin , erythromycin , the aminoglycosides , minocycline and doxycycline , chloramphenicol , ampicillin , penicillin g , carbenicillin , colistin , and sulfamethoxazole-trimethoprim ( 19:1 ratio ) ;
C0030827
penicillin g
C0006976
carbenicillin