I have been taking Vyvanse for about 3-4 years and it has worked pretty good. Lately I have noticed that it does not work as well I feel like it does nothing. I am currently taking 60 mgs. I was diagnosed with ADHD when I was 5 and I am now 18 and weigh 98 pounds. Anyways, I want to try something else, I have adderall XR that is 25mg which is equivalent to 60mgs of vyvanse. I also have Intuniv, Focalin XR, Ritalin LA, D- Amphetamine. I want to try something different for school tomorrow. Would it be harmful from switching from vyvanse to any of the other medications I listed? Which one would you suggest me to take.