And i used to abuse my vyvanse im talking 4-500 mg. If you have a very high tolerance youl feel great but if not it will make you quite sick or worse. Dont have a heart attack buddy.
Your first time taking vyvanse would be like an 8 hour coke high at around 40 mg, but after a few days you lose that high and only get therapeutic effects
You need to talk to your doctor about this..