I also gained weight with this, almost 10lbs right away. It did help with some of the pain but not enough to gain that kind of weight. I stopped taking it. I actually stopped taking all but my pain meds and sleep meds. I have lost the 10 plus a few more by just eating better. All of the meds they have been giving me were not helping and just had way too many side effects. I, of course. do not suggest this for anyone. I stopped them slowly and talked to my doctor first.