Methadone Induced Memory Retrieval-extinction Procedure in Heroin Addicts

Drug memory is not invariably stable and can be induced transiently labile again by drug-related cues or drug itself, which is termed as 'reconsolidation'. Previously we and other groups have demonstrated that extinction coincided with reconsolidation weakened the drug memory and decreased drug craving and relapse. In the present study, we tried to interfere the methadone-induced heroin addiction memory reconsolidation by extinction given at different times following methadone administration.