"i&#039;m 43 female adhd, tried other medications, hated the up and down jittery feelings.  started vyvanse 30mg 6 months ago, moved to 70mg now. this medication has helped me achieve major improvements in my concentration &amp; focus. only downsides are dry mouth &amp; it does not hold me through the 12 hour time stated. i get about 8 hrs. my daughters started vyvanse 50. my 15yr olds grades are up &amp; my 20 yr old said, if this is how normal people focus and think, i&#039;m jealous. overall a wonderful help  :)"