"i&#039;ve been on vyvanse a few years and i remember the exact moment i realized it kicked in. out of the blue i thought &quot;oh my goodness&quot; is this what normal feels like. my main reason for this post is in reading here i&#039;ve noticed a couple of people have mentioned the expense. if you go to vyvanse website you can get a savings card, the card brings the cost to $30:)"