title: The development of sustained action preparations of narcotic antagonists.
mesh_terms: D000818:Animals; D003692:Delayed-Action Preparations; D004343:Drug Implants; D006801:Humans; D009270:Naloxone / Q000031:analogs & derivatives*; D009271:Naltrexone / Q000627:therapeutic use*; D009294:Narcotics; D011957:Receptors, Opioid / Q000187:drug effects; D012107:Research Design; D019966:Substance-Related Disorders / Q000534:rehabilitation*
chemical_list: D003692:Delayed-Action Preparations; D004343:Drug Implants; D009294:Narcotics; D011957:Receptors, Opioid; D009270:Naloxone; D009271:Naltrexone