Post treatment weight gain | ADHD Information

I have been on adderall xr for over a year now and I am about to have to get off the meds per my medical insurance. (I'll no longer have it in a few weeks) I will have to deal with my ADHD symptoms, and I'm okay with that, but I am not okay with gaining all the weight. I lost 25 lbs when I went on it and I don't want to gain it back. Can anyone tell me their exp. with this or any ideas for keeping the weight off? Thank you! if you have good eating habits and a good excercise regimen, you shouldnt gain it back, not easily anyway. If you arent in these good habits, then you may end up slowly regaining. Maybe spend the next few weeks getting into and excercise schedule.