title: THEOPHYLLINE BLOOD LEVELS. A COMPARISON OF THEOPHYLLINE GUAIPHENESIN, CHOLINE THEOPHYLLINATE, AND THEOPHYLLINE.
mesh_terms: D035843:Biomedical Research; D001769:Blood; D002794:Choline / Q000031:analogs & derivatives; D005100:Expectorants; D005753:Gastric Mucosa; D006140:Guaifenesin; D006801:Humans; D010600:Pharmacology; D013806:Theophylline / Q000031:analogs & derivatives; D014116:Toxicology
chemical_list: D005100:Expectorants; C012839:cholinophyllin; D006140:Guaifenesin; D013806:Theophylline; D002794:Choline
keywords: BLOOD; CHOLINE; CLINICAL RESEARCH; EXPECTORANTS; GASTRIC MUCOSA; PHARMACOLOGY; THEOPHYLLINE; TOXICOLOGIC REPORT