"i am currently taking vyvanse and intuniv. i am 16 years old and i have add. i am on week 2 of the intuniv. i have noticed that every time i get up from sitting down or laying down, i get very dizzy. i haven&#039;t felt sleepy or tired, but i think that&#039;s just because i am taking the vyvanse too. i am taking intuniv to try to cancel out the anxiety side effect of the vyvanse. i haven&#039;t noticed a difference at all. i am just very frustrated at this point. i have tried almost every add medicine out there. i still have impulses and still am a perfectionist. i am still hoping that it will improve over time."