Are there other types of buprenorphine that are in use in the US?
There are other formulations of buprenorphine used for the treatment of pain. Some earlier studies of buprenorphine maintenance and detoxification used these forms – most commonly an injectable formulation called Buprenex. However under current U.S. law, only Subutex and Suboxone may be used in opioid maintenance or detoxification.