Ephedrine, ephederine, ephedra, ma huang, different names for an amazing herb/chemical that can help promote significant fat loss and weight reduction if taken properly. Since the ephedrine ban new formulas have come out that are derived from the stems and leaves of the plant itself and not the alkaloids. Most of these formulas like phenterdrene p57, lipodrene, phenlydrene, clenbuterine are not as powerful as the old stacker 2's or ripped fuels but can still deliver good results and benefit anyone trying to lose weight. Remember, these products are not to be used by people suffering from high blood pressure or heart problems.