Contingency Management for Opioid Use Disorder in Inpatients at Assiut University Hospital

Participants with opioid use disorder admitted to the inpatient addiction management unit will receive a contingency management (CM) program as a behavioral intervention. The program consists of providing positive reinforcement (small rewards or incentives) contingent upon objective evidence of desired behaviors, primarily drug abstinence verified by urine toxicology screening. The intervention will be delivered throughout the inpatient stay (approximately two weeks). Participants' adherence and abstinence will be monitored, and rewards will be adjusted based on performance.