"i am 16 and was recently diagnosed with add. i find vyvanse extremely helpful for the first 6 hours, and then as i come off of it i often have a depressive mood swing for about an hour. i have been trying other medications but vyvanse works the best for me (except for the mood swings). i am almost never hungry. i have lost about 22lbs in 2 months. it&#039;s important to keep a regular eating schedule. i continue to try different medications, but this one has extremely changed my life for the better in school and in social settings."