Pain management and prescription drug abuse is a tough issue. There are those who are in serious physical pain who need meds to get through the day. I don't have any insight into this issue......I just want to let you know that I'm sorry that you are dealing with it.
My suggestion is always the same and I feel like a broken record sometimes.....but I think that the support found in the rooms of Alanon and Naranon are priceless. We learn how to distinguish between things we can control and things we can't control. And we learn how to find joy and serenity regardless what is going on with others around us. Those are priceless gifts that last a lifetime and can be used in every aspect of every day.
I'm sorry that your man is in pain and I'm sorry that you are worrying about his use of the drugs he has been prescribed. It's a tough issue.
gentle hugs
ke