title: Neurobiological barriers to euphoria.
mesh_terms: D000928:Antidepressive Agents / Q000494:pharmacology*; D001679:Biogenic Amines / Q000378:metabolism*; D001921:Brain / Q000378:metabolism*; D005059:Euphoria / Q000187:drug effects; D006213:Hallucinogens / Q000494:pharmacology*; D006801:Humans; D006993:Hypnotics and Sedatives / Q000494:pharmacology*
chemical_list: D000928:Antidepressive Agents; D001679:Biogenic Amines; D006213:Hallucinogens; D006993:Hypnotics and Sedatives