adderall and weight loss?

CC
ADHD runs in my family and I've been having an extraordinarily hard time concentrating so I'm seeing a doctor soon and she'll probably put me on adderall. I've also been having an extraordinarily hard time losing weight (eating fewer calories than I burn every day for two months and haven't seen any changes whatsoever) and I hear that adderall can help you lose weight.
anyone have any experience with this? obviously this is a secondary concern for me with obtaining adderall but I just wanted to know what I should expect as far as my weight