anxiety (1.2% vs 1.7%), insomnia (1.8% vs 2.2%) confusional state (0.2% vs 0.2%), disorientation (0.2% vs 0.3%), nightmares (0.2% vs 0.2%), sleep disorders (0.5% vs 0.3%), nervousness (0.2% vs 0.2%), abnormal dreams (0.2% vs 0.2%)