I gained 70 pounds when I was taking Lithium
and Seroquel. I dieted, ate hardly anything
and exercised like crazy!! I still gained weight by the tens every couple of weeks. I almost threw the bathroom scale out the window one day!! My normal body weight is about 110lbs, so you could imagine what it was like being 170lbs! Finally, I realized back then that the meds can slow down your metabolism. I went to an Endocrinologist because I couldn't stop gaining weight.