Hi!
I would also like to know about the long term side effects. I used Xenadrine long time ago and it worked perfect for me !!
I want to use it again but I have heard that it can damage your kidney

What I have noticed on my self was a muscle pain, rapid heart beat and depression, but that went away as soon as I stoped taking them.
I was trying many diferent things (e.g.CLA, phentermine) but without efect :/
I was taking syntetic estrogen and progesteron and gained 30lbs from it ...wrrr
Now I need to loose it !!