Headache, dizziness, fatigue, somnolence & nausea; diplopia, ataxia, upper abdominal pain. Adults: Tremor, nystagmus, blurred vision, vomiting, anxiety, constipation, dyspepsia, back pain, gait disturbance, vertigo. Ped patients: Flu, nasopharyngitis, decreased appetite, rash, bronchitis, sinusitis, psychomotor hyperactivity, aggression, ear infection, disturbance in attention, pruritis.