I was recently reading this post about how almost all ephedrine products available now also contain a quite counter-productive and undesirable ingredient known as guaifenesin.

If im not mistaken, the psuedoephedrine containing products do not have this guaifenesin.

So i am just curious, is a psuedo/caffenine stack just as much, if not more, desirable than an ephedrine guaifenesin caffeine stack?