Cephalosporin antibiotics interfere with the analysis for theophylline by high-performance liquid chromatography.
D002511:Cephalosporins; D002851:Chromatography, High Pressure Liquid; D006801:Humans; D008722:Methods; D013806:Theophylline / Q000097:blood*
D002511:Cephalosporins; D013806:Theophylline