i suppose you could say it is similar to antibuse - kind of. People take it to taper rather than go C/T.
Subutex/Buprenorphine is an opioid that is used to wean people off their addiction to stronger opioids such as morphine, diamorphine (heroin) and methadone. It is prescribed as a substitute for such drugs. By acting on the same opioid receptors as other opioids, buprenorphine prevents the physical withdrawal symptoms that occur when these drugs are stopped. This prevents physical cravings. Over time, the dose of buprenorhpine is gradually reduced until it can be stopped completely.
Buprenorphine is only suitable as an opioid substitute in people who are moderately dependent on other opioids. This is because in addition to stimulating opioid receptors, buprenorphine also blocks them. In people who are dependent on high doses of opioids, this can cause withdrawal symptoms when the buprenorphine is started. For this reason, in people highly addicted to opioids, the daily opioid dose should be reduced gradually before therapy with buprenorphine is started.
I suppose its the same in the respect that some alcoholics take antibuse rather than go CT.
hope this helps