I had lost a few pounds last fall doing walking, and was staying fairly stable on the lamictal, but when my mood did a nose dive and we had to bump the lamictal up to 400, I gained about 10 pounds, maybe 15, in a short period of time. I was not a happy camper, as I am now at the 250 mark, which is my nightmare number. (I could live with 235, even 240, better fat than unstable. But 250 is IT.) For other reasons I'm getting off the lamictal, so hopefully some more walking will help me drop the extra weight.

But yes, I gained weight on it, too.