1. The isolation of morphine: first principles in science and ethics;Huxtable;Mol Interv,2001
2. Methylnaltrexone mechanisms of action and effects on opioid bowel dysfunction and other opioid adverse effects;Yuan;Ann Pharmacother,2007
3. Pain relief without side effects: peripheral opiate antagonists;Moss,2005
4. Mu-opioid antagonists for opioid-induced bowel dysfunction;McNicol;Cochrane Database Syst Rev,2008
5. FDA approves Relistor for opioid-induced constipation [press release];US Food and Drug Administration,2008