Редки: намалени вкусови усещания, нарушена сетивност (парестезия), треперене (тремор), спазми/ конвулсии (гърчове), силно главоболие (мигрена).
smell disorder (parosmia), loss of smell (anosmia, the smell usually returns after termination of treatment), convulsions (grand mal convulsion), abnormal (unstable) gait, increased pressure in the head (intracranial hypertension)