title: Nicotinic acid and nicotinamide in the treatment of chronic schizophrenia.
mesh_terms: D002908:Chronic Disease; D002986:Clinical Trials as Topic; D005069:Evaluation Studies as Topic; D006801:Humans; D009536:Niacinamide / Q000627:therapeutic use*; D009539:Nicotinic Acids / Q000627:therapeutic use*; D010919:Placebos; D011569:Psychiatric Status Rating Scales; D012559:Schizophrenia / Q000188:drug therapy*
chemical_list: D009539:Nicotinic Acids; D010919:Placebos; D009536:Niacinamide