title: Acanthosis nigricans and nicotinic acid.
mesh_terms: D000052:Acanthosis Nigricans / Q000139:chemically induced*; D000328:Adult; D006801:Humans; D008297:Male; D009525:Niacin; D009539:Nicotinic Acids / Q000009:adverse effects* / Q000627:therapeutic use; D012559:Schizophrenia / Q000188:drug therapy
chemical_list: D009539:Nicotinic Acids; D009525:Niacin