Suboxone and subutex contain Buprenorphine, a partial opioid agonist that WILL block the effects of traditional opiates, AND cause precipitated withdrawl. There is a common myth that subutex won't cause blockage because it does not contain naloxone, truth of the matter is, naloxone is only added in Suboxone as a deterrent so addicts think twice about IVing, it is inactive sublingually ANYWAY, so whether you take subutex or suboxone, your still not going to feel the effects of opiates if you try to get high later that day, DEPENDING on how much suboxone or subutex you previously took that day. Usually when you take 8mg in a day, you will get almost complete blockage of opiates if attempted to get high, usually 85% of your opiate receptors are saturated, so expect huge disappointment.
Taking doses of 2-4mg of sub that. Day, gives you wiggle room to still feel effects of other opiates. Regardless if you take 1mg of suboxone, you will get COMPLETE BLOCKAGE from other opiates if you try to get high 1-4hrs after. You need to wait a good 6-8hrs to even feel other opiates if you don't exceed 4mg suboxone that day.
And YES, you STILL will go through precipitated withdrawal if you get high, and take a SUBUTEX after. Buprenorphine is what causes PWD. Naloxone is a deterrent in suboxone so addicts wont IV it, and even that is a whole other complicated subject i do not want to get into, basically, one can shoot suboxone and not go thru precip. WD, as bupe has a higher affinity than naloxone...subutex Suboxone. Tomato tamato