"Opioid dependence and addiction, whether to heroin or prescription pain relievers, is a serious, life-threatening medical condition. Methadone and buprenorphine are medications that permit addicted individuals to function normally within their families, jobs, and communities. While treatment with methadone is more established, it requires daily visits to an OTP. Not all individuals who could benefit from methadone treatment live within easy travelling distance of an OTP. Furthermore, the requirement for daily visits can interfere with jobs and other important activities. The introduction of buprenorphine for the treatment of opioid dependence has provided an alternative to methadone treatment for some opioid dependent persons; however, buprenorphine may not be appropriate for all opioid-addicted persons. The dramatic increase in the number of clients receiving buprenorphine through treatment facilities is an indication of the demand for safe and effective medications for the treatment of opioid addiction in the context of a broader treatment program."

Source

Substance Abuse and Mental Health Services Administration, Center for Behavioral Health Statistics and Quality. (April 23, 2013). The N-SSATS Report: Trends in the Use of Methadone and Buprenorphine at Substance Abuse Treatment Facilities: 2003 to 2011. Rockville, MD, p. 2.
http://www.samhsa.gov/data/2k…