Attention Deficit Hyperactivity Disorder, or ADHD, changes the way that a person’s brain interacts with chemicals. These chemicals affect more than just the ability of a person to sit still, but also motor function, reflexes, and moods as well. Medications for ADHD help the brain interact with the aforementioned chemicals.

The prescriptions typical for ADHD aid that communication, called neurotransmission, by providing either stimulants or no stimulants to the parts of the bran that do not have access to required chemicals. Stimulants are the most common but there are cases in which they are ineffective and non stimulants are to be used.