the drugs tested included 4 drugs of the cephem group , r-3746 , a na-salt form of cpdx , cefaclor ( ccl ) , cephalexin ( cex ) and cefadroxil ( cdx ) , and 3 drugs of the penicillin group , ampicillin ( abpc ) , methicillin ( dmppc ) and cloxacillin ( mcipc ) .
C0007537
cefaclor
C0007716
cephalexin