 Autism is a serious disorder that first presents in childhood, usually before three years of age American Psychiatric Association, 1994. Though the incidence of autism is low approximately 3-6 cases per 10,000 live births, the consequences of the disorder are severe. As the term pervasive implies, the symptoms affect most areas of functioning in the developing child, and the disabilities associated with the disorder tend to persist throughout life. Symptoms of autism include abnormalities in social relatedness including extreme withdrawal; communication including no or little speech; and a sameness or repetitiveness in behaviors and interests. Children diagnosed with autism can have severe problems including hyperactivity, lability of mood, irritability, withdrawal, and stereotypical behavior. Because of these severe problems, treatment of symptomatology often includes pharmacotherapy. 