If you try it make sure you want to see it all the way through! It is a Godsend when you first try it! Zero withdrawl, fantastic dreams, and just suddenly you realize you don't smoke! But if you don't see it through, and quit taking it....well second time around is not so great....nausea, vivid bad dreams, and it doesn't help the smoking as much. I know been there, and am now doing the second time, I wish more than anything I would have stuck with it the first time, it was great and it was working....almost effortlessly. Now I will just have to suffer through. I say go for it, but go 100%, the first time!!