title: The effect of azelastine on exercise-induced asthma.
abstract: In ten young asthmatic subjects, we studied the effect of a single oral dose of 4.4 mg of azelastine hydrochloride on exercise-induced bronchoconstriction during the breathing of cold air. Exercise challenges were performed on two different days before and four hours after azelastine and placebo given in a randomized double-blind crossover fashion. Placebo had no effect on baseline pulmonary function and postexertional obstruction of the airways, in contrast to azelastine, which exerted a small but significant (p less than 0.05) bronchodilation and a significant attenuation (p less than 0.01) of exercise-induced bronchoconstriction as compared to data from before treatment and after placebo.
mesh_terms: D000328:Adult; D001249:Asthma / Q000188:drug therapy*; D001250:Asthma, Exercise-Induced / Q000188:drug therapy*; D003080:Cold Temperature; D004311:Double-Blind Method; D005080:Exercise Test; D005260:Female; D006634:Histamine H1 Antagonists / Q000627:therapeutic use*; D006801:Humans; D008297:Male; D010793:Phthalazines / Q000627:therapeutic use*; D011724:Pyridazines / Q000627:therapeutic use*; D011897:Random Allocation
chemical_list: D006634:Histamine H1 Antagonists; D010793:Phthalazines; D011724:Pyridazines; C020976:azelastine