As a recovering addict, the fact that he is taking anything that isn't prescribed for him, says he's not doing very well at recovery.
My stepmom has vicodin and xanax all the time. I used to abuse these drugs, but later became addicted to crack. Now, I won't take anything that isn't prescribed to me, and my doctor knows I'm an addict. I won't say that it isn't tempting, at times, when my stepmom offers me one of her pills if my back is hurting, or I can't sleep, but I won't take anything and told her to stop offering them.
This is just my opinion, but I think he's still looking for a pill to make him feel better....and that's not recovery. Another thing, several addicts will abuse anything in pill form...even over-the-counter stuff.
Hugs and prayers!
Amy