Histamine receptors branch out.
D000818:Animals; D001921:Brain / Q000502:physiology; D006632:Histamine / Q000502:physiology; D008761:Methylhistamines / Q000378:metabolism / Q000494:pharmacology; D010880:Piperidines / Q000378:metabolism / Q000494:pharmacology; D011968:Receptors, Histamine / Q000187:drug effects / Q000502:physiology*; D018100:Receptors, Histamine H3
D008761:Methylhistamines; D010880:Piperidines; D011968:Receptors, Histamine; D018100:Receptors, Histamine H3; D006632:Histamine; C052075:thioperamide; C048140:N-methylhistamine