vyvanse is the brand name of the prescription drug lisdexamfetamine dimesylate vyvanse is used to treat attention deficit hyperactivity disorder adhd in children and adults and binge eating disorder bed in adultsvyvanse is not a narcotic but the drug enforcement administration dea considers it a schedule ii controlled substanceyvanse is a stimulant in a class of drugs known as sympathomimetic amines scientists aren t sure exactly how the drug works but it does stimulate the part of the the nervous system involved in the flight or fight response the food and drug administration fda approved vyvanse in 2007