Use of methylnaltrexone and related compounds for treatment of constipation caused by endogenous opioids

摘要

A method of for preventing or treating gastrointestinal dysfunction and constipation caused by endogenous opioids in a patient who has been chronically taking opioids. The method comprises administering methylnaltrexone or another quaternary derivative of noroxymorphone most preferably by parenteral, intramuscular, intravenous or oral route.