I have a history of anxiety disorder. I have been off of xanax for about a year. I asked to be taken off of xanax to see if I could do without them. I have to admit I would not recommend anyone with an abxiety disorder do this. I have been on vyvanse for 18 months. I have returned to school and I am hopeful again. I still need something for my anxiety though. I was taking lexapro with the vyvanse but I had a cardiac event, and it was attributed to this combination. So.are there any problems with combining a benzo with vyvanse