What are the side effects for ecstasy and Oxycontin?

Unless you have a very high opiate tolerance, it could very possibly kill you. Even most seasoned users never take that much at once. Be careful.

I have friends with very high tolerances that I've seen take 400-500 mg at once. It all depends on what your tolerance is. If you have never taken it before 30mg could put you in the hospital. Everyone's body chemistry is different and so is tolerance.