Somnolence, headache, dizziness; nausea, vomiting; fatigue. Pneumonia, influenza, nasopharyngitis, ear infection, sinusitis, rhinitis; anorexia, eating disorder, decreased appetite; anxiety, insomnia; status epilepticus, convulsion, abnormal coordination, nystagmus, psychomotor hyperactivity, tremor; diplopia, blurred vision; vertigo; epistaxis; upper abdominal pain, constipation, dyspepsia, diarrhoea; rash, acne; back pain; oligomenorrhoea; gait disturbance; decreased wt; head injury, contusion.