Somnolence, dizziness, fatigue, irritability, decreased wt, bradyphrenia, paresthesias, diplopia, abnormal coordination, nausea, nystagmus, lethargy, anorexia, dysarthria, blurred vision, decreased appetite, memory impairment, diarrhea, decreased appetite, disturbance in attention, aggression, rash, abnormal behavior, balance disorder, constipation, depression, anxiety, asthenia, dysgeusia, hypoesthesia, pyrexia, alopecia, insomnia, expressive language disorder.