| Completed | 3 | 19 | US | Heroin, Diacetylmorphine, Naloxone, Naloxone Hydrochloride (HCl), Low Bup Dose, Subutex, High Bup Dose, Low Bup/Nal Dose, Suboxone, High Bup/Nal Dose, Placebo (PCB), 0 mg | New York State Psychiatric Institute, Schering-Plough | Opioid-related Disorders | 08/08 | 08/08 | | |