Fraser, H F Possible effects of normetabolites on the subjective and reinforcing characteristics of opioids in animals and man. [electronic resource] - Drug and alcohol dependence Sep 1978 - 301-18 p. digital Publication Type: Journal Article; Review ISSN: 0376-8716 Standard No.: 10.1016/0376-8716(78)90001-7 doi Subjects--Topical Terms: AnimalsDealkylationDextropropoxyphene--administration & dosageDogsHaplorhiniHeroin Dependence--psychologyHumansMethadone--administration & dosageMethyltransferases--antagonists & inhibitorsMorphine Dependence--psychologyNalorphine--administration & dosageNarcotics--administration & dosagePupil--drug effectsReinforcement, PsychologySelf AdministrationSpecies SpecificityTime Factors