with rare exceptions , most strains of b. catarrhalis were inhibited by achievable serum concentrations of seven cephalosporins ( cephalothin , cephapirin , cephaloridine , cephalexin , cephamandole , cefaclor , and cefuroxin ) and one cephamycin ( cefoxitin ) .
C0007736
cephamycin
C0007557
cefoxitin