title: Strong analgesics in severe pain.
mesh_terms: D000701:Analgesics, Opioid / Q000008:administration & dosage / Q000009:adverse effects / Q000378:metabolism / Q000627:therapeutic use*; D002908:Chronic Disease; D003042:Cocaine / Q000627:therapeutic use; D005283:Fentanyl / Q000627:therapeutic use; D006207:Half-Life; D003932:Heroin / Q000627:therapeutic use; D006801:Humans; D007273:Injections, Intramuscular; D008691:Methadone / Q000627:therapeutic use; D009020:Morphine / Q000627:therapeutic use; D010148:Intractable Pain / Q000188:drug therapy*; D010149:Postoperative Pain / Q000188:drug therapy
chemical_list: D000701:Analgesics, Opioid; D003932:Heroin; D009020:Morphine; D003042:Cocaine; D008691:Methadone; D005283:Fentanyl