Table 1

Schedule of events

MondayTuesdayWednesdayThursdayFriday
Week 1Bup/$20No drugNo drugChoice 1, AMChoice 3, AM
Sample 1Choice 2, PMChoice 4, PM
Week 2Heroin 0, 10, 20 mgNo sessionHeroin 0, 10, 20 mgNo sessionNo session
Week 3Bup/$20No drugNo drugChoice 1, AMChoice 3, AM
Sample 2Choice 2, PMChoice 4, PM
Week 4Heroin 0, 10, 20 mgNo sessionHeroin 0, 10, 20 mgNo sessionNo session
Week 5Bup/$20No drugNo drugChoice 1, AMChoice 3, AM
Sample 3Choice 2, PMChoice 4, PM
Week 6Heroin 0, 10, 20 mgNo sessionHeroin 0, 10, 20 mgNo sessionNo session

  • Bup, buprenorphine.