the discriminative stimulus properties of l-alpha-acetylmethadol ( laam ) , its metabolities 1-alpha-acetyl-n-normethadol ( norlaam ) and l-alpha-acetyl-n , n-dinormethadol ( dinorlaam ) , and methadone were evaluated in rats trained to discriminate between saline and morphine in a two-choice discrete-trial avoidance paradigm .
C0025607
acetylmethadol
C0025605
methadone