title: Effects of two antihistamine-containing compounds upon performance at three altitudes.
mesh_terms: D000222:Adaptation, Physiological; D000293:Adolescent; D000328:Adult; D000337:Aerospace Medicine; D000531:Altitude; D001831:Body Temperature; D002395:Catecholamines / Q000097:blood; D002744:Chlorpheniramine / Q000494:pharmacology*; D002986:Clinical Trials as Topic; D006339:Heart Rate; D006634:Histamine H1 Antagonists / Q000494:pharmacology*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D006931:Hyperbaric Oxygenation; D010101:Oxygen Consumption; D010276:Parasympatholytics; D010919:Placebos; D011930:Reaction Time / Q000187:drug effects*
chemical_list: D002395:Catecholamines; D006634:Histamine H1 Antagonists; D010276:Parasympatholytics; D010919:Placebos; D002744:Chlorpheniramine