title: Methodology for clinical trials of drugs affecting the nasal airways.
mesh_terms: D000328:Adult; D001966:Bromine / Q000627:therapeutic use*; D001977:Brompheniramine / Q000627:therapeutic use; D002986:Clinical Trials as Topic; D003139:Common Cold / Q000188:drug therapy*; D006634:Histamine H1 Antagonists / Q000627:therapeutic use*; D006801:Humans; D006940:Hyperemia; D009297:Nasal Mucosa / Q000503:physiopathology; D009991:Oscillometry; D010656:Phenylephrine / Q000627:therapeutic use*; D010919:Placebos; D011725:Pyridines / Q000627:therapeutic use*
chemical_list: D006634:Histamine H1 Antagonists; D010919:Placebos; D011725:Pyridines; D010656:Phenylephrine; D001977:Brompheniramine; D001966:Bromine