urgh, ephedrine, its derivative is in sudafed the positive results from it are better used in sports like motor racing and jet skiing etc due to enhanced concentration. all these decongesgants etc contain pseudoephedrine or ephedra and this crappy things you see ephamax with plants and caffeine in are all waste of time, ephedrine is nothing to write home about id happily fight against someone who had taken it beforehand as it does more harm than good in fight environment, know too many ex-ABA boxers who tried it, no use in competition.
some of the info posted on here regarding cell regeneration etc is correct but it can make you bigger and stronger definitely in the right doses you only need to look at an AAS mass strength fat cardio anabolic and catabolic comparison chart to see that it is high up in strength and size gains.
I wouldnt say people would use IGF and HGH purely as cutting without cardio, the top bodybuilders do cardio but way differently to what we would ever see in martial arts. Some of the most defined, cut athletes just walk on the treadmill and its enough, their diet and supplements are so perfect and their last 48 hours before competition slow water cutting is amazing.
One of my best mates has won Mr Universe Short, 1st European Championships Short, 1st World Championships Short & Overall, 1st Including many other national and international titles, last year he did Mr Olympia which is about the biggest one out there and i have read many of his articles and books published on his training etc. very interesting if you are into the theory behind it.
Holding on to Your Gains, by William Llewellyn
"Holding on to Your Gains Without Steroids" is a good book worth reading with decent info on training without the use of AAS.
William Llewellyn’s ANABOLICS 9th edition is about the most comprehensive and accurate guide out there but it is approx $90 and heavy to ship.
SPORT SUPPLEMENT REFERENCE GUIDE (SSRG)is also good and i used the old 7th edition to support a thesis i wrote when i was studing this.

Paul u just can sleep because you are waiting for a gypo to kick down ur door and cut ur throat for nailing his sister!