title: Pharmacologic blockade of reflex vasodilation: peripheral actions of antihistamines.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology; D000818:Animals; D001593:Benzyl Compounds / Q000494:pharmacology; D001794:Blood Pressure / Q000187:drug effects; D001808:Blood Vessels / Q000187:drug effects*; D002744:Chlorpheniramine / Q000494:pharmacology; D004285:Dogs; D005029:Ethylenediamines / Q000494:pharmacology; D006632:Histamine / Q000494:pharmacology; D006634:Histamine H1 Antagonists / Q000494:pharmacology*; D007545:Isoproterenol / Q000494:pharmacology; D009132:Muscles / Q000098:blood supply / Q000187:drug effects; D005996:Nitroglycerin / Q000494:pharmacology; D009638:Norepinephrine / Q000494:pharmacology; D011311:Pressoreceptors / Q000187:drug effects; D011398:Promethazine / Q000494:pharmacology; D011725:Pyridines / Q000494:pharmacology; D012018:Reflex / Q000187:drug effects*; D012039:Regional Blood Flow; D014665:Vasodilator Agents
chemical_list: D001593:Benzyl Compounds; D005029:Ethylenediamines; D006634:Histamine H1 Antagonists; D011725:Pyridines; D014665:Vasodilator Agents; D002744:Chlorpheniramine; D006632:Histamine; D011398:Promethazine; D005996:Nitroglycerin; D007545:Isoproterenol; D000109:Acetylcholine; D009638:Norepinephrine