Methylphenidate is a medication prescribed for individuals (usually
children) who have attention-deficit hyperactivity disorder (ADHD), which
consists of a persistent pattern of abnormally high levels of activity,
impulsivity, and/or inattention that is more frequently displayed and more
severe than is typically observed in individuals with comparable levels of
development. From the National Institute on Drug Abuse, The Science of
Drug Abuse & Addiction
Ritalin (Bubblemonkey.com)
Ritalin is a prescription drug that is often used to treat children and teens
who have attention deficit /hyperactivity disorder (ADHD)
Facts
About Amphetamines From The Alcohol and Drug Information Clearinghouse.
Amphetamines include three closely related synthetic drugs - amphetamine,
dextroamphetamine, and methamphetamine