Histamine, the antihistamines and allergy.
D018926:Anti-Allergic Agents; D006632:Histamine / Q000502:physiology*; D006633:Histamine Antagonists; D006634:Histamine H1 Antagonists / Q000627:therapeutic use*; D006801:Humans; D006967:Hypersensitivity
D018926:Anti-Allergic Agents; D006633:Histamine Antagonists; D006634:Histamine H1 Antagonists; D006632:Histamine
ALLERGY; ANTIHISTAMINICS/therapeutic use; HISTAMINE/physiology