why would you care unless you want to get high?
it should be 1-4 days(it depends on the size of the habit preceding the use of
suboxone,( the bigger the habit, the more receptors, the shorter the sub lasts), the naloxone does NOTHING unless you inject the sub, it is ineffectively absorbed sublingually and in too small a qty to be active if taken appropriately.
It is simply the buprenorphine's high affinity to the receptors(it sticks good), that blocks other opiates from getting in.