title: Elevated plasma histamine after heroin and morphine.
mesh_terms: D000818:Animals; D001011:Aorta; D004285:Dogs; D003932:Heroin / Q000494:pharmacology*; D006632:Histamine / Q000097:blood*; D006636:Histamine Release / Q000187:drug effects; D007962:Leukocytes / Q000378:metabolism; D008168:Lung / Q000098:blood supply / Q000378:metabolism; D009020:Morphine / Q000494:pharmacology*; D011651:Pulmonary Artery; D013997:Time Factors; D014628:Vagotomy
chemical_list: D003932:Heroin; D009020:Morphine; D006632:Histamine