Ritalin and Adderall, known generically as methylphenidate and amphetamine, respectively, are commonly prescribed to treat symptoms of attention deficit hyperactivity disorder or ADHD. When used as directed under proper medical supervision, Ritalin and Adderall have limited side effects.

Adderall is a combination drug that contains two central nervous system stimulants: dextroamphetamine and amphetamine.

Attention deficit (hyperactivity) disorder, as it is called in the Diagnostic Statistical Manual, a publication of the American Psychiatric Association that provides a common language and standard criteria for the classification of mental disorders, can affect people of all ages.

Methylphenidate, also known as Ritalin, is a stimulant medication used to treat attention-deficit hyperactivity disorder. Ritalin increases the amount of dopamine released in the brain. Dopamine is responsible for feelings of pleasure and well-being.

ADD, or more commonly known as ADHD, is a brain disorder that causes the chemistry in the brain to function abnormally. Hosts of natural treatments are available to help sufferers cope with their symptoms, however, many of these are not proven by science to be safe and effective.

Attention-deficit/hyperactivity disorder, sometimes referred to as ADHD or ADD, was once considered a childhood and adolescent disorder that people grew out of as they aged into adulthood.

ADHD, or attention deficit hyperactivity disorder, is a term used to describe various combinations of symptoms related to impulsive behavior, inattention and hyperactive behavior. These symptoms typically manifest in childhood and may continue into adulthood.

Attention deficit disorder, or ADD, is a neurologically based behavioral condition that affects both children and adults. Some of the prescription medications used to treat this disorder have gained attention and controversy due to the unwanted effects and potential for abuse of these powerful drugs.

Hives (urticaria) are quite common in children. They may occur in response to a variety of substances, such as food, latex, medications or insect bites. Most hives are acute, meaning they disappear within a few days, but some cases are chronic and last weeks or longer.

ADHD -- attention deficit hyperactivity disorder -- is one of the most common disorders of childhood. Its symptoms often persist into adulthood as well, and may negatively impact learning, work and home life. There are three types of ADHD, according to the National Institute of Mental Health.

If you're concerned that your teen might have attention deficit disorder, or ADD, you have probably noticed he has difficulty getting organized and staying on task. His grades may be dropping, or he may complain that he has difficulty focusing.

Attention deficit/hyperactivity disorder involves hyperactivity, impulsivity and problems with maintaining attention. Individuals with this disorder often have difficulty functioning in day-to-day life. ADHD becomes evident in childhood and often continues into adulthood. As MayoClinic.