since an increase of cefmetazole transport was found when concentration of nonprotein sulfhydryls in rectal tissue was decreased by the presence of either deemm or dem in the study using in vitro everted sac method and the enhancement of cefmetazole absorption by the coadministration of either deemm or dem was suppressed by the treatment with dimercaprol , membrane permeability of rectal tissue seems to be regulated by the concentration of nonprotein sulfhydryls in rectal tissue .
C0012383
dimercaprol
C0038734
sulfhydryls