bmy-28100 was compared with cephalexin , cefaclor , cefixime , and cefteram and found to be more active than the reference cephalosporins against staphylococcus aureus , staphylococcus epidermidis , streptococcus faecalis , and clostridium difficile .
C0007716
cephalexin
C0007537
cefaclor