Meget almindelig: somnolens Almindelig: amnesi, ataksi, krampe, svimmelhed, hovedpine, hyperkinesi, tremor, balanceforstyrrelser, koncentrationssvækkelse, hukommelsessvækkelse.
Very common: somnolence Common: amnesia, ataxia, convulsion, dizziness, headache, hyperkinesia, tremor, balance disorder, disturbance in attention, memory impairment.