J.P.
I Have been taking it for quite a while.It works pretty well for me. It's not perfect, but it helps a lot. I have not gained weight, and I take it at night, and sleep just fine. I think both of those things (mentioned by others) are on a person by person basis. I do get light headed if I stand up too quickly, but that's about it. Hope that helps! Oh, I take it for depression, and anxiety!