A novel behavior modification program BMP for ensuring abstinence in substance abuse patients was being run in a tertiary care hospital in Jeddah, Saudi Arabia. ...The study group consisted of adult male patients suffering from drug addiction, exposed to an initial detoxification treatment program and subsequently enrolled into BMP during the year 1424 Hijri, the reason of period selection that it was before the modification of inpatient BMP in the facility toward more outpatient one. ...