I have ADHD and Bipolar 1 and I take 60mg of Vyvanse. I agree with all of the things bioChE has said in the post about their experience with Vyvanse and take it for the same reasons. I've found it to be very helpful. I've not experienced any anger or rage problems while taking it and not experienced any crashes or let downs at the end of the day. It works smoothly for me and has greatly improved my concentration and focus. I understand that it may not work for everyone and that people react to medications differently but my experience with it has been positive. I also take it with Latuda.