The hype about clen in the early 80's turned it in to a killer drug according to my friend. A man who is expected to live to about 80 yo, but dies from a drug expected to leave the man in better condition would have been said to have died an early death.
The hype from the 80's my friend reported is nothing new. Look at the hype about steroids in mainstream press, the 'emergency anti-steriod laws' passed by U.S. Congress, and compare that to the safe and effective use described in this forum.
This is the first I've read that it's only for quite lean people. The studies I've read did not include a lean existing BF as a requirement for use.
This article on Clen included dosage and side effects:
http://www.bodybuilding.com/fun/behar11.htm
http://www.pponline.co.uk/encyc/0176.htm
Studies on rats showed heart size increase around the 4th week. That might be another reason to stick with the 2wk on and off.
http://www.muscletalk.co.uk/article-clenbuterol.asp
This article cautions about using Clen with other fat burning stacks, because sides can be accumulative. The purpose of Clen is to raise the core body temp 1F. The article says that the degree increase raises a 5% increase in burned maintenance calories.
Based on that number Clen doesn't seem to be worthwhile to me.
3000 cal * .05 * 7 = 1050 calories/week = 1/3 lb/week.
That's hardly worth it.
I saw guys in here reporting a 5#/week weight loss just from Clen.
Anyone have that experience?
Thanks,
Mike