Best practices advise that a new stimulant should be started at the lowest dose, and then increased only as needed (if needed). If you’re son is on that lowest starting dose of Vyvanse, it may be that he simply needs an increase in dose. If you’ve already been through the titration and adjustment of this medication, then Vyvanse may not be the right stimulant for him. Here’s medication reviews for Vyvanse:
There are two types of stimulants used to treat ADHD: amphetamines (Adderall, Vyvanse, etc) and methylphenidates (Concerta, Ritalin, Quillivant, etc). Most individuals do well on one type or the other, but not both. So, taking that into account, it may be time for your son to try a methylphenidate.
ADDitude Community Moderator, Author & Mentor on Parenting ADHD, Mom to teen w/ ADHD, LDs, and autism