Common side effects may include: Abdominal pain, Abnormal behavior, Abnormal dreams, Anaphylaxis, Anxiety, Bipolar mood disorder, Cataplexy, Decreased appetite, Depressed mood, Depression, Epilepsy, Fatigue, Hallucination, Headache, Hypersensitivity reaction, Increased heart rate, Insomnia, Irritability, Lack of emotion, Migraine, Musculoskeletal pain, Nausea, Nightmares, Prolonged QT interval on ECG, Pruritus, Skin rash, Sleep disorder, Sleep disturbance, Sleep paralysis, Sleep talking, Suicidal ideation, Suicidal tendencies, Tachycardia, Upper respiratory tract infection, Weight gain, Xerostomia