title: Antagonism of antigen-induced contraction of guinea pig and human airways.
mesh_terms: D000403:Airway Resistance / Q000187:drug effects*; D000818:Animals; D000941:Antigens; D001249:Asthma / Q000276:immunology*; D001578:Benzopyrans / Q000494:pharmacology*; D001980:Bronchi / Q000276:immunology; D004155:Diphenhydramine / Q000494:pharmacology*; D004987:Ethers / Q000494:pharmacology; D006168:Guinea Pigs; D006801:Humans; D066298:In Vitro Techniques; D009119:Muscle Contraction / Q000187:drug effects; D013189:SRS-A / Q000037:antagonists & inhibitors*; D013997:Time Factors; D014132:Trachea / Q000276:immunology
chemical_list: D000941:Antigens; D001578:Benzopyrans; D004987:Ethers; D013189:SRS-A; D004155:Diphenhydramine