i dont agree with the article at all. Seems this writer doesnt know much about what shes talks about, and I doubt shes even tried ephedra, much less ephedrine.
I much prefer the article by Jeremy Likness (now, this guy is a real awesome amateur writer), in whicih he outlines studies and proves that ephedra is effective, how to use it, and of course, the precautions necesary.
this is the link, enjoy:
http://www.bodybuilding.com/fun/likness18.htm