I have been taking Zoloft 75 mg for almost a year. I was just increased to 100 and also added mirtazapine 7.5 (very low dose). Since I started last July, I have gained almost 20 lbs. I work out daily, eat v few calories and I continue to gain. I have been an athlete my entire life and never had an issue with weight gain so this is really hard frustrating.

My doctor just switched me to Wellbutrin SR and the pharmacist said I may still gain weight, but my doc said I would loose weight... I have two questions
1. Is there a chance I will loose weight?
2. If so, will it be able to remove the weight put on by the other drugs that healthy eating and exercise cant?