Is It common to have rapid weight gain during long-term use of Adderall XR?

I have been taking 60 mg daily of Adderall XR (two 30 mg pills) for more than 10 years. Like many of you, I lost weight initially and was happy because i wasn't hungry. About two years ago I began gaining weight and never considered the Adderall as a cause because I know it's supposed to act like amphtetamine which is used to make people lose weight.
I have now gained 40 pounds and look terrible and nothing I have tried has made a bit of a difference. My cholesterol is down to 137 and my triglycerides are low and all other blood work is fine. I would love to switch, but I think I do need to take it to keep me mentally focused and on point.
Aren't there any better drugs out there for losing weight?

Yes I have gained 30lbs. What I find confusing is when people lose weight.
Pre medication, having ADHD, I found eating a waste of time, my brain couldn’t be “bothered” to spend the time eating. Since taking Adderall XR I can now concentrate long enough to eat a meal. So to me weight gain makes sense.