have a poke around the stickies and the rules for posting, have a lurk, and post in a couple threads. You'll get to know the community soon enough, we're all pretty friendly around here.
I am not sure what to think, but as long as they aren't physically harmful then I don't think it is a problem. It depends on what you feel about it and how your master does if it isn't hurting you. If you don't know much about it, maybe you should find out. There could be a lot of side effects that you don't know about.
I would never take something that you don't know what it is, very dangerous. Has your Master ever thought of doing the same thing the natural way? I refer to it as orgasm control but I have no idea if that is the proper term. It drives me insane but a very effective punishment, and nothing but natural chemicals!