Overall , the most common ( > 10 % ) TEAEs were dizziness ( 24.0 % ) , headache ( 14.4 % ) , nausea ( 13.4 % ) , convulsion ( 11.5 % ) , somnolence ( 10.4 % ) , and fatigue ( 10.1 % ) ; most ( 74.1 % ) were mild-to-moderate in intensity .