Clenbuterol or 'clen' is a prescription drug that is used to treat asthma, it is a stimulant that is similar to ephedrine that is used by bodybuilders to stimulate metabolic activity, raising
body temperature slightly, thus burning bodyfat.
Dosing for men is anything between 5 and 8 pills a day and 1 to 4 for women.
Here are some links:
http://www.steroidology.com/forum/sh...light=Clen+FAQ
www.muscletalk.co.uk/topic.asp?TOPIC=26469_ID
I have used clen and I have found it to be fairly effective. (although I didn't use it for fat-loss) The side-effects were mild and no worse than I get from ephedrine. They only lasted about 30 mins about an hour after oral administration.
Tablets come in 20 mcg (micrograms not milligrams) tablets so tell your friend to be careful.
Clen's fat-burning properties slow down after about 2 weeks of use, as receptor sites are down-regulated. Clen has also been shown to slow the conversion of T4 into T3 (the hormone most responsible for
burning fat) Ephedrine has been shown to stimulate the increase of T3. So telly our friend to switch with an ECA after every 2 weeks use.
Jock
)
Good info though Lee 
Linear Mode
