in doses of 250 mg orally , cefaclor produced a peak serum concentration of 6.01 +/- 0.55 ( standard deviation [ sd ] ) mug/ml compared with 9.43 +/- 2.36 mug/ml for cephalexin ( p < 0.01 ) .
C0007537
cefaclor
C0007716
cephalexin