title: Effect of intravenous dibutyryl cyclic AMP on histamine-induced bronchospasm in the guinea pig.
mesh_terms: D000249:Adenosine Monophosphate / Q000494:pharmacology; D000336:Aerosols; D000628:Aminophylline / Q000494:pharmacology; D000818:Animals; D001794:Blood Pressure / Q000187:drug effects; D001986:Bronchial Spasm / Q000517:prevention & control*; D000242:Cyclic AMP / Q000008:administration & dosage / Q000494:pharmacology / Q000627:therapeutic use*; D004305:Dose-Response Relationship, Drug; D004357:Drug Synergism; D006168:Guinea Pigs; D006339:Heart Rate / Q000187:drug effects; D006632:Histamine / Q000008:administration & dosage / Q000494:pharmacology; D006634:Histamine H1 Antagonists / Q000627:therapeutic use*; D008297:Male; D009130:Muscle, Smooth / Q000187:drug effects
chemical_list: D000336:Aerosols; D006634:Histamine H1 Antagonists; D000628:Aminophylline; D000249:Adenosine Monophosphate; D006632:Histamine; D000242:Cyclic AMP