I think that you telling him that he needs professional help is about all that you can do. Other than being there for him.
He pretty much owns this problem. And until he sees that he needs help, there really isn't much you can do, other than pray. You can't change him, or make him change. I guess that you could give him an ultimatum, that that puts your friendship on the line right there. And that could further distance him.
You could try to talk him into going into counseling. That would probably do him some good. But that would be nagging to him. So he might have to learn his own lesson. The sad part about it is that with him driving on drugs, he is putting others at risk.
I wish you the best with this problem. Keep posting, there could be others with better advice. I hope that you can get the answers that you need. But worrying about him is going to get to you after awhile and effect you. So remember, this is his problem, not your problem. Though I can truly see that you care.
Best wishes my friend.
Moderator-Depression and fibromyalgia
fibromyalgia, Chronic fatigue, depression,allergies