fr 17027 , a new orally absorbed cephalosporin ester , inhibited group a and b streptococci and streptococcus pneumoniae at less than or equal to 0.1 micrograms/ml , which is similar to the inhibition concentration of amoxicillin and cefaclor , and was more active than cephalexin .
C0007537
cefaclor
C0007716
cephalexin