the most active drugs with respect to the median minimal inhibitory concentration ( micrograms per milliliter ) were tetracycline ( 0.09 ) , penicillin g ( 0.78 ) , ampicillin ( 0.78 ) , carbenicillin ( 1.56 ) , cephalothin ( 1.56 ) , and chloramphenicol ( 1.56 ) .
C0030827
penicillin g
C0006976
carbenicillin