Sunflower, I'm sorry if it seems like I'm being the hall-monitor on you today
But as I pointed out on the other thread:
a) Buprenorphine, the active ingredient is subutex/suboxone is a partial opioid agonist. It is not an opioid antagonist.
b) Buprenorphine can definitely by considered 'addictive' by the most common definition, which is to say, it does produce physical and psychological dependency, and has significant withdrawal effects.
The fact that bupe has a 'ceiling' does not in any way preclude it's also being 'addictive'. The two are not mutually exclusive, in other words.
Now, it's certainly not AS 'addictive' as full opioid agonists are, nor is it considered to have the same level of 'abuse potential' (and the ceiling effect does come into play as to why that is), nor does it tend to produce 'tolerance' to the same effect ... but make no mistake ... bupe *is* most definitely 'addictive', by the most common definition of the word ... again, it produces dependency, and then subsequent withdrawals when it's use is ceased.
I don't know much about soma's, but I do know they aren't opioids, and thus, it doesn't make a whole lotta sense to me to get onto subs for a soma problem. I don't know what the answer IS, here, either, unfortunately, but I'd be hard pressed to see why subs are the logical answer in this situation.
Good luck in any case, and keep posting!