"i was on lexapro for about 6 months before my doctor switched me to wellbutrin due to weight gain and sexual side effects. i experienced intense headaches for the first few days, and dry mouth for the first 2 weeks. both have since gone away. i have also lost 11 pounds in one month, which brings me just below my pre-lexapro weight. i would attribute much of this to the reduction in appetite i have experienced with wellbutrin, as well as increased metabolism. my anxiety is under control and i feel great!"