confirmed opiate addicts ( n = 78 ) were asked to associate three opiate names ( heroin , morphine , and methadone ) and six nonopiate names [ pentobarbital , alcohol , benzedrine , `` '' goofballs '' '' ( barbiturates ) , cocaine , and `` '' reefers '' '' ( marijuana ) ] to stages of addiction , steps in drug taking , and drug effects .
C0030883
pentobarbital
C0004745
( barbiturat