I have tried the Xenadrine with ephedra and it worked for me however i have noticed that it makes me a little on edge and gives me headaches at times. within 3 months of eating right taking xenadrine and some but not much exercise i have gone from a size 18 to a size 10/12. i seemed to lose more inches than pounds. i did quit taking it and was maintaining my weight until i tried to quit smoking and gained 5lbs back. so back to dieting again.