[Histamine and antihistaminics].
D018926:Anti-Allergic Agents; D006632:Histamine / Q000502:physiology*; D006634:Histamine H1 Antagonists / Q000494:pharmacology*
D018926:Anti-Allergic Agents; D006634:Histamine H1 Antagonists; D006632:Histamine
ANTIHISTAMINICS/pharmacology; HISTAMINE/physiology