title: Effect of an alpha-adrenergic-blocking drug on bronchodilation and protection in provocation tests in patients with chronic obstructive airways disease, bronchial asthma, and in non-responders.
mesh_terms: D000109:Acetylcholine / Q000037:antagonists & inhibitors; D000293:Adolescent; D000328:Adult; D000368:Aged; D001249:Asthma / Q000188:drug therapy* / Q000517:prevention & control; D001980:Bronchi / Q000187:drug effects; D004351:Drug Resistance; D004359:Drug Therapy, Combination; D006801:Humans; D007545:Isoproterenol / Q000627:therapeutic use*; D008173:Lung Diseases, Obstructive / Q000188:drug therapy*; D009921:Metaproterenol / Q000494:pharmacology; D008875:Middle Aged; D010646:Phentolamine / Q000494:pharmacology / Q000627:therapeutic use*
chemical_list: D009921:Metaproterenol; D007545:Isoproterenol; D000109:Acetylcholine; D010646:Phentolamine