Quillivant is one of the widely used central nervous system stimulant. The stimulants are the chemical compounds that act as a catalyst for any process and similarly the central nervous stimulants are the chemical compounds that increases the alertness, attention and physical activity and hence solves the problems like ADHD or attention deficit hyperactivity disorder. There are various purposes when the doctors prescribe Quillivant. Quillivant may also be used for purposes not listed in this medication guide. This medicine has been used for a long period of time and has been researched for over 50 years.