title: Morphine effects on cardiovascular performance.
mesh_terms: D000818:Animals; D001341:Autonomic Nervous System / Q000502:physiology; D002319:Cardiovascular System / Q000187:drug effects*; D002927:Cimetidine / Q000494:pharmacology; D004155:Diphenhydramine / Q000494:pharmacology; D004285:Dogs; D004305:Dose-Response Relationship, Drug; D006321:Heart / Q000294:innervation; D006439:Hemodynamics / Q000187:drug effects; D009020:Morphine / Q000494:pharmacology*; D009270:Naloxone / Q000494:pharmacology
chemical_list: D009270:Naloxone; D009020:Morphine; D002927:Cimetidine; D004155:Diphenhydramine