in a randomized crossover study , the pharmacokinetics of two new cephalosporin antibiotics , cefaclor ( ccl ) , and cefadroxil ( cdx ) , were determined after oral administration of 1000 mg ( capsules ) on an empty stomach in 12 normal subjects in comparison to cephalexin ( cex ) .
C0007538
cefadroxil
C0007716
cephalexin