Yes, I bought tbol in Bangkok before. I can't remember the pharmacy but it was right under the elevated train. I got these little pink pills with flying saucer looking things stamped on them. They are good. I actually still have a few at the bottom of my tbol stash.

You can go into almost any pharmacy and ask for AAS. I even saw GH in one as well. The prices were not all that great but easy to get. I actually bought some tbol and primobolan on my credit card. It's something like 150 baht to the US dollar?