“…Studies have shown that spouse involvement in treatment is an effective intervention for enhancing adherence to disulfiram, for reducing total alcohol consumption, for improving partner relationships, and for maintaining treatment gains over time (McCrady, Epstein, & Hirsch, 1999;McCrady, Epstein & Kahler, 2004;McCrady, Stout, Noel, Abrams, & Nelson, 1991;O'Farrell, Choqu ette, & Cutter, 1998 ;O'Farrel l, Cutter, Choquette, Floyd , & Bayog , 199 2;O'Farrell, Van H utton, & Murphy, 1999). More recently, studies that have extended this work to illicit-drug-using individuals have shown that patients treated with BCT exhibit less drug use and better overall treatment adherence than those prescribed individual-based therapies (Fals-Stewart, Birchler, & O'Farrell, 1996;Fals-Stewart et al, 2000;Winters, FalsStewart, O'Farrell, Birchler, & Kelley, 2002).…”