title: Drugs for severe chronic pain.
mesh_terms: D000701:Analgesics, Opioid / Q000627:therapeutic use*; D003975:Diazepam / Q000627:therapeutic use*; D004359:Drug Therapy, Combination; D006801:Humans; D010148:Intractable Pain / Q000188:drug therapy*
chemical_list: D000701:Analgesics, Opioid; D003975:Diazepam