title: Cephalosporin antibiotic interference with theophylline assay.
mesh_terms: D000628:Aminophylline / Q000627:therapeutic use*; D002437:Cefazolin / Q000627:therapeutic use*; D002851:Chromatography, High Pressure Liquid; D004347:Drug Interactions; D006801:Humans; D013806:Theophylline / Q000097:blood*
chemical_list: D000628:Aminophylline; D013806:Theophylline; D002437:Cefazolin