What are the effects of amphetamines like adderall (dextroamphetamine and racemic amphetamine)?

Amphetamine: Amphetamines are generally quite well-tolerated in most patients. Therapeutic effects include improved attention and ability to focus. Adverse events can vary somewhat between children and adults. These can include nervousness, insomnia, , loss of appetite, abdominal pain, weight loss during prolonged therapy, and an increase in heart rate may occur.