Swim has on two occasions attempted to acquire some h after a brief hiatus. It appears that he has been ripped off both times

(its white powder btw).
He is puzzled however, because when he first tried it, he could swear that he felt a light opiate buzz. He now chalks this up to placebo, and perhaps a psychological sort of addiction to snorting.
One thing that really puzzles him however, is his eyes. Of course, the mystery powder makes him sleepy (placebo and/or crushed sleepy pills of some sort most likely), but it also happens to constrict his pupils. He imagines this could narrow down the possibilities as to what the mystery substance is, or maybe even the pupils mag a psychological sort of trick?
He has also started taking Wellbutrin, and has been taking it for a few months, could this possibly affect euphoria and other goodness of h.
Even if it leads to financial ruin, he is still determined to find some good dope. He will post if that ever happens, but until then, he is curious to know what the mystery powder he feels compelled to snort actually is. Could it be dangerous??