Headache, sleep abnormalities (e. g. abnormal dreams, insomnia), dizziness, anorexia, fatigue (e. g. somnolence, drowsiness), euphoria, transient abnormal movement (e. g., twitching, ataxia, tremor, myoclonus), seizures and rarely psychomotor restlessness/ akathisia (see section 4.4 Special warning and precautions for use).