ADHD
"My 7 year old son has been on Vyvanse for a little over a month.  We have been well pleased with the overall outcome.  He is now able to focus in school and actually sits down and completes his homework without argument. Much calmer in public, unlike before.  Downside, he has lost 4 pounds in a month and becomes very emotional if taken off for the weekend and put back on.  After 1 1/2 months, my son now has developed eye tics.  We have stopped the medication and the eye tics are beginning to subside."