title: Histaminergic mechanisms in the brain.
mesh_terms: D000818:Animals; D001921:Brain / Q000378:metabolism*; D006632:Histamine / Q000378:metabolism*; D009474:Neurons / Q000378:metabolism; D018377:Neurotransmitter Agents / Q000378:metabolism; D014018:Tissue Distribution
chemical_list: D018377:Neurotransmitter Agents; D006632:Histamine