title: Pharmacological reactivity of an isolated tracheal preparation of the guinea-pig.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology*; D000818:Animals; D001285:Atropine / Q000494:pharmacology*; D001464:Barium / Q000494:pharmacology*; D002714:Chlorisondamine / Q000494:pharmacology*; D002744:Chlorpheniramine / Q000494:pharmacology*; D004155:Diphenhydramine / Q000494:pharmacology*; D004983:Ethanolamines / Q000494:pharmacology*; D006168:Guinea Pigs; D006584:Hexamethonium Compounds / Q000494:pharmacology*; D006632:Histamine / Q000494:pharmacology*; D066298:In Vitro Techniques; D007545:Isoproterenol / Q000494:pharmacology*; D009119:Muscle Contraction / Q000187:drug effects*; D010208:Papaverine / Q000494:pharmacology*; D012601:Scopolamine / Q000494:pharmacology*; D012701:Serotonin / Q000494:pharmacology*; D013806:Theophylline / Q000494:pharmacology*; D014132:Trachea / Q000187:drug effects*
chemical_list: D004983:Ethanolamines; D006584:Hexamethonium Compounds; D001464:Barium; D012701:Serotonin; D002744:Chlorpheniramine; D001285:Atropine; D006632:Histamine; D004155:Diphenhydramine; D013806:Theophylline; D010208:Papaverine; D012601:Scopolamine; D002714:Chlorisondamine; D007545:Isoproterenol; D000109:Acetylcholine