My med combo was Lamictal and Cymbalta, but due to insurance it is now Lamictal and Effexor. I tried Zyprexa and gained a lot of weight. I also tried Symbyax which is also Olanzapine like Zyprexa, but also contains Fluoxetine aka Prozac. I blew up like a balloon. Something like 20 lbs in just a few days.