using the present method , interference with the porter-silber reaction was not found in the urines from patients medicated with chloramphenicol , minocycline , chlordiazepoxide , meprobamate , methyprylon , nitrazepam , synthetic penicillins such as hetacillin , oxacillin and cloxacillin , or cephalosporins such as cephalexin and cephalothin .
C0029983
oxacillin
C0009077
cloxacillin