title: Tricyclic quinuclidylidenes as potential antihistamine-bronchodilating agents.
mesh_terms: D000336:Aerosols; D000818:Animals; D001993:Bronchodilator Agents / Q000138:chemical synthesis*; D004417:Dyspnea / Q000517:prevention & control; D006168:Guinea Pigs; D006632:Histamine / Q000008:administration & dosage; D006634:Histamine H1 Antagonists / Q000138:chemical synthesis*; D008168:Lung / Q000187:drug effects; D009119:Muscle Contraction / Q000187:drug effects; D011812:Quinuclidines / Q000138:chemical synthesis* / Q000494:pharmacology
chemical_list: D000336:Aerosols; D001993:Bronchodilator Agents; D006634:Histamine H1 Antagonists; D011812:Quinuclidines; D006632:Histamine