Welcome to the forum, Seaoro693 . . .
For a first time post, bro, you've gotten into an interesting area.
There are a couple of variables on which your original post did not touch. They include the usual questions about your buddy's stats - age, height, weight, physical condition, any underlying medical conditions, etc. They also include a background on your experience with AS - namely, you are 20 years old, so I have to raise the question of whether you are in a position in terms of knowledge and experience to, as you expressed so well, "guide him in the right direction."
Don't take this wrong, bro, but my take is that you are not in that position. The scenario you have described is a common one here at A.R., although it is not usually put in terms of an addiction. It's usually put in terms of an illness on the part of a family member, often a senior citizen or someone with other complicating medical conditions.
My answer in this scenario is the same that I would give someone in the situatiosn I have described above: It's obvious that you care about this guy and his welfare. But you are not in a position to be prescribing, and that is what you would, in effect, be doing. If he's on methadone, then he's still addicted - remember, methadone is merely a legal substitute for heroin addiction (and heroin, to give you a little drug histroy, was originally a legal substitute for morphine addiction). Would AS do him some good, especially with regard to the wasting that accompanies addiction to smack? Possibly, but your direct involvement would skew your judgment in this issue, much as a shrink would never counsel a friend or family member.
At 20, I have concerns about how familiar you are with the psychology of addiction itself. Addicts are usually (not just sometimes, but almost all the time) manipulators; those that they manipulate are enablers. Sit back for a second and do a reality check: Remember, not ony are you not a physician, you are also not a trained substance abuse counselor.
You referred to his "wasted muscles," but did not specify the extent of this problem - namely, whether it is significant enough to be considered what used to be called wasting syndrome. If he has any significant wasting, the next question that comes up is his HIV status (keeping in mind that heroin addicts often share needles, and that demographically, HIV is very prevalent among drug abusers). If he has never been checked out for this, I would certainly encourage him to do so - although not curable, HIV is treatable.
You have written, "If he dosent get it from me he is going to get it from someone else and they might give him bad gear or bad info." In theory, you concern is justified. It's the same principle from which many of us operate when it comes to young people using AS - we advise against it, but we recognize that many will do it anyway. So we provide information that will allow them to do whatever they choose to do in an informed manner. The same principle applies to needle exchange programs and condom distribution in the schools. People are gonna shoot up and boink each other despite anyone's efforts to the contrary.
But the question I need to ask here is, who came up with the idea of your buddy doing AS in the first place? Him? Or you? Or some other bozo at the gym who doesn't know your buddy's background, perhaps some pro-AS evangelist from the wacky world of roids? You see, everyone is an individual, and AS will do good for some - but not for others. And AS is not an area in which the typical multi-level marketing sales pitch of, "Gee, I don't know how it works, but I loved it, and you will to!" will not cut it.
My take is that if your buddy gets into AS now, he will merely be trading one addiction for another. We do occasionally see people here on A.R. for whom the act of injecting is a high in itself. Granted, it's not an addiction per se in terms of going through withdrawal if you don't get your dose of a narcotic drug, but it does reflect the same type of addictive personality.
Bottom line: You're dealing with an area which has lots of potential complications, and you're not in a position to play guru on this one. You are far too close to the situation, probably inexperienced in terms of playing shirpa/guide let alone having a comprehensive knowledge of AS, and are probably being used by this guy (whether he is aware of it or not - there is a codependency thing that enters into this type of picture).
Do you care about your buddy? Sure you do. But that's all the more reason to pull back and realize that this is best left to medical experts and, yes, addictions counselors who will not fall for a subtle manipulation rap.
P.S. Re-read The Original Jason's post in this thread. He speaks from experience, and I concur with everything he said.
