Try Ephedrine HCL
http://www.bodybuilding.com/store/mp/vaso2.html
Devloped for Relief For Shortness Of Breath, Tightness Of Chest, And Wheezing. It's a controled synthetic substance. Where as ephedra is an uncontroled plant.
It works better and is safer, take it with caffeine 3 times a day 200MBG caffeine/25MG ephedrine, 30minutes prior to a meal. Make sure you're active and eating good as well.