When my first semester ended about a month ago, I had all b's and c's. Feeling kinda dissapointed my friend let me try his rx for vyvanse. I was not taking it recreationally and I dont plan on it. I did not get the euphoric and energized effect like everyone says, it simply gave me the ability to sit down and do mywork, no more no less. I have taken vyvanse about 5 times over the past two Weeks and all of mygrades have shot up to a's. I was wondering how many times a week I could take this med without getting addicted. Thanks .