I have tried
olanzapine before, and like ILADVOCATE, I also have a big problem with the
side effect (weight gain). So if you are really very concern about your weight, my advice to you is that don't try olanzapine, I know the feeling of being over weight, it feels really terrible. You can discuss with your pdoc about Lamictal, the only side effect I have with Lamictal is that I can't take it at night, as I can't sleep so I take it in the morning, which helps alot.