"i have been taking vyvanse for at least three to four years now pretty consistently. i have never wrote a review before on this medication because i was always at limbo about how i felt on it. i will say that vyvanse gets the job done as far as helping focus and pay attention to tasks. i am a full time student and this medication has helped me jump from a 2.5 gpa to a 3.5 gpa. i have taken up to 60 mg but i went through time periods where i would withdrawal myself from it and start back up again at 30 mg. the 30mg is way more manageable than any other dose i think. although this medication has positively changed my life, it has also created issues for me. i am very tired when i do not take my medicine. even if i miss a day.."