Was on concerta at 54 Mg's 2x's a day. After 2 years, it stopped working. Tried adderall but could not tolerate the hesrtburn. Then focalin xr, did nothing. Now I'm on my 2nd week of vyvance at 70mg's & I feel like I need a higher dose-- but 70 is Max dose-- what can I do?? Is there a short acting Vyvanse ? It's definitely working but by 4 PM, i am completely ehaused & eat like a pig!! Help!! Any answers would be helpful!! Thank You in advance!! I don't think my doctor will prescribe much more but going from 108 Concerta to 70 Vyvanse seems to not be equal-- I did read that soon, there's s'posed to be an increase in maximum dose RE Vyvanse--