when there's serious trouble ahead, take serious action. i agree with king cola especially if you are in school yet go right to his parents. if your good enough friends fwith him then When he is clean he will realize that the "betrayal of trust" was nessisary(sp). if you are both adults then you should feel comfortable in talking to him. tell him he can crash at your place while he comes down. offer him all you can and if he don't listen then go talk to his family. he is the one who admitted the problem to you he's asking for your help and support. he may hate for a while if you can get him help but it won't be long because when he gets back to normal you can catch up with him and say well you told me about it and i got worried if you whadn't been worried yourself you wouldn't have told me.