Best way to talk to a friend about addiction?

[IrishofNDMan]

haven't figured out what to do, but here are the latest things on him.

Friday, he calls me from someone we knows house (huge druggie) and says that this kids parents are gone, he has a fifth, a bottle of liquid codine, and some xanax bars and has been living the dream life for the past couple of days. If he really thinks this is the dream life, which I actually do think he believes, then he is more messed up than I even thought.