Tolerance and dependency ISSues of narcotic analgesICS We should understand the basic principles of narcotic analgesICS and distinguish different concepts of owg orance, musical a ependence and sYchological dependence(adDiction), even pseudo addictionTolerance and dependency issues of narcotic analgesics • We should understand the basic principles of narcotic analgesics and distinguish different concepts of drug tolerance, physical dependence and psychological dependence (addiction), even pseudo￾addiction