“…Subsequently, numerous studies examined the safety and efficacy of buprenorphine maintenance treatment (Ahmadi, 2002; Amass, Kamien, and Mikulich, 2000; Fischer et al, 1999; Fudala and Johnson, 1995; Fudala et al, 2003; Johnson, Jaffe, and Fudala, 1992; Johnson et al, 1995 a , 1995 b , 2000; Kosten et al, 1993; Ling et al, 1996; Mattick et al, 2003; Pani et al, 2000; Perez de los Cobos et al, 2000; Petitjean et al, 2001; Schottenfeld et al, 1997, 2000; Strain et al, 1994; Uehlinger et al, 1998). The only study to compare buprenorphine, LAAM, and high-dose methadone found that all three produced similar reductions in illicit opioid use and were superior to low-dose methadone (Johnson et al, 2000).…”