title: Effect of an oral leukotriene D4 antagonist L-649,923 on the response to inhaled antigen in asthma.
mesh_terms: D000941:Antigens / Q000008:administration & dosage; D001249:Asthma / Q000188:drug therapy* / Q000503:physiopathology; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D005541:Forced Expiratory Volume; D006801:Humans; D008297:Male; D010366:Peak Expiratory Flow Rate; D010654:Phenylbutyrates / Q000627:therapeutic use*; D011897:Random Allocation; D013189:SRS-A / Q000037:antagonists & inhibitors*
chemical_list: D000941:Antigens; D010654:Phenylbutyrates; D013189:SRS-A; C050033:L 649923