I took topomax & lost weight. Most ppl on it, lose weight. I wasn't hungry & often even forgot to eat. I remember one day I was on the computer & said 'Oh no, I never ate & the kids will be home from school soon' (it was 2:30). All I had had was my morning coffee. After awhile I thought I was losing to much too fast. I take Lamictal too, since 1996. It controls my GM's.