Vyvanse is a brand name for the prescription medication lisdexamfetamine. It is a central nervous system stimulant that is primarily used for the treatment of attention deficit hyperactivity disorder (ADHD) in children and adults.

Vyvanse works by increasing the levels of certain neurotransmitters, such as dopamine and norepinephrine, in the brain. These neurotransmitters play a role in regulating attention, impulse control, and hyperactivity.