title: Respiratory smooth muscle relaxing effect of commercial steroid preparations.
mesh_terms: D000818:Animals; D001980:Bronchi / Q000187:drug effects*; D002087:Butyrates; D000242:Cyclic AMP / Q000378:metabolism; D003907:Dexamethasone / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D004347:Drug Interactions; D006168:Guinea Pigs; D007545:Isoproterenol / Q000494:pharmacology; D008297:Male; D009119:Muscle Contraction / Q000187:drug effects; D009130:Muscle, Smooth / Q000187:drug effects*; D010226:Parabens / Q000494:pharmacology*; D014677:Pharmaceutical Vehicles; D010726:Phosphodiesterase Inhibitors; D014132:Trachea / Q000187:drug effects
chemical_list: D002087:Butyrates; D010226:Parabens; D014677:Pharmaceutical Vehicles; D010726:Phosphodiesterase Inhibitors; D003907:Dexamethasone; D000242:Cyclic AMP; D007545:Isoproterenol