It takes awhile to become physically dependent on bupe, if you're not currently dependent on opioids and never really have been...
Using a drug like bupe to make a detox go more smoothly works, but nothing completely eliminates withdrawal, especially if you have a history of opiate dependence...
Some people do "luck out" on their first few detoxes, and are able to taper painlessly...but when you reach the point some of us have, where you've kicked opiates more times than you can count on both hands...we become fully dependent with a few days of use, and the withdrawal symptoms are brutally painful.....
If you barely have a habit to begin with, tapering with bupe could do more harm then good...especially if you're using high doses like 8-16mgs to start the taper...If you're going to use bupe to taper, you shouldn't use anywhere near that amount..You should start around 2mgs, cut down in .5 mg increments, and only take the bupe for 5 to 7 days max....Any longer than a week, you're gonna start getting dependent to the bupe itself, which has a much more long, drawn-out withdrawal than just about any full agonist opiate you may be trying to come off of...