title: [Analysis of the concentration-effect curves for the action of isoproterenol on the trachea of guinea pigs pretreated with beta-adrenergic blocking agents].
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000494:pharmacology; D000818:Animals; D004983:Ethanolamines / Q000494:pharmacology; D006168:Guinea Pigs; D066298:In Vitro Techniques; D007545:Isoproterenol / Q000037:antagonists & inhibitors / Q000494:pharmacology*; D008729:Methoxamine / Q000494:pharmacology; D009119:Muscle Contraction / Q000187:drug effects; D009130:Muscle, Smooth / Q000187:drug effects; D011433:Propranolol / Q000494:pharmacology; D013565:Sympatholytics / Q000494:pharmacology*; D014132:Trachea / Q000187:drug effects*
chemical_list: D000319:Adrenergic beta-Antagonists; D004983:Ethanolamines; D013565:Sympatholytics; D011433:Propranolol; D008729:Methoxamine; D007545:Isoproterenol