title: The pharmacology of bronchiolar muscle relaxation.
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use*; D001249:Asthma / Q000188:drug therapy*; D001980:Bronchi / Q000187:drug effects*; D001986:Bronchial Spasm / Q000188:drug therapy*; D000242:Cyclic AMP / Q000502:physiology*; D004347:Drug Interactions; D006801:Humans; D009119:Muscle Contraction; D009130:Muscle, Smooth / Q000187:drug effects; D010726:Phosphodiesterase Inhibitors
chemical_list: D000319:Adrenergic beta-Antagonists; D010726:Phosphodiesterase Inhibitors; D000242:Cyclic AMP