Is it legal to purchase redotex?

(Question moved from Introductions to more appropriate topic area to get more exposure to those who are best able to answer the question.)

Isn't that some new whacked out mexican drug... from what I remember it's a combination of a thyroid, diurectic, stimulant and tranquilizer drug all in one pill... never understood the tranq part of it... maybe so you don't feel the stimulants