title: Antihistamines and vascular reactivity.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology; D000818:Animals; D001775:Blood Circulation / Q000187:drug effects; D001808:Blood Vessels / Q000187:drug effects*; D002744:Chlorpheniramine / Q000494:pharmacology*; D004155:Diphenhydramine / Q000494:pharmacology*; D004837:Epinephrine / Q000494:pharmacology*; D006632:Histamine / Q000494:pharmacology*; D006634:Histamine H1 Antagonists / Q000494:pharmacology*; D066298:In Vitro Techniques; D008638:Mesenteric Arteries / Q000187:drug effects; D008642:Mesenteric Veins / Q000187:drug effects; D008643:Mesentery; D009638:Norepinephrine / Q000494:pharmacology; D011398:Promethazine / Q000494:pharmacology*; D051381:Rats; D012701:Serotonin / Q000494:pharmacology; D014666:Vasomotor System / Q000502:physiology*
chemical_list: D006634:Histamine H1 Antagonists; D012701:Serotonin; D002744:Chlorpheniramine; D006632:Histamine; D004155:Diphenhydramine; D011398:Promethazine; D000109:Acetylcholine; D009638:Norepinephrine; D004837:Epinephrine