I take Effexor, Ritalin and Abilify for severe depression, and definitely gained 15-20 lbs after starting the Abilify--at the time I was involved in an intense exercise program and eating a low-carb diet and I gained 10 lbs in that month. That doesn't make sense, so I know it's the Abilify. I need it for anxiety, unfortunately, but am desperate to lose the weight. How long after you stop, if you're following a low-carb diet and exercising, should the weight come off?