Clenbuterol works the same way as ephedrine, but unlike ephedrine, clen lasts for days, it has a MUCH longer half-life. Thus, it's a lot more potent/effective.
I'd have to disagree. Both clen and eff are not a miracle drugs which will make your fat drop to min in a week or so. But for me eff/caffetine/aspirine before running or boxing or biking is acctually making results while clen although it may have a longer half-life is really not that potent during those 30 mins of cardio training - and that is what you need - 30 mins of cardio enhanced by eff. And clen for me has the worst sides of those two - I shake like a leaf for a whole fckin day and can't even shoot my pool properly or write while on it. And imagine what will your heart think of a longer half-life? Maybe some insomnia ? Think this over - sides are really not that big issue but eff is by far the better choice ..
For me Clen just makes me hot and sweat like a pig (but with little to no NOTICEABLE fat loss), while Ephedrine to me gives LESS noticeable sides AND seems to cut me up better...
For me Ephedrine is the preferred fat loss agent (in the rare times I actually use one )