Modafinil has been shown to be quite safe. Headaches are the most common side effect,29,9 with other more common side effects including nausea, vomiting, nervousness, and anxiety.9 Less common, but more serious side effects have included delusions and hallucinations, palpitations, chest pain, dyspnea, increased blood pressure, and EKG changes. 9 Modafinil has been applied to the treatment of Attention Deficit Hyperactivity Disorder, with results indicating Modafinil to be a viable treatment alternative to Dextroamphetamine in ADHD,28 and TBI,9 for the treatment of underarousal. Modafinil therefore demonstrates efficacy within other patient groups with neurological impairment.