The biological assay of histamine and diphenhydramine hydrochloride (benadryl hydrochloride).
D001681:Biological Assay; D004155:Diphenhydramine; D006632:Histamine / Q000032:analysis*; D006801:Humans; D012492:Salts
D012492:Salts; D006632:Histamine; D004155:Diphenhydramine
BENADRYL; HISTAMINE/assay