Abritt is right on with the technical info, many people make the mistake of thinking
Narcan, or
Naloxone, is what causes precipitated withdrawal and blocks opiate receptors. Buprenorphine is intended as a part of a complete recovery program. Subs are powerful opiates and should be used with knowledge, caution, and respect. Nursegirl is right on about some kind or meetings and aftercare, cutting sources, and tell doctors and a friend about your recovery.