Meget almindelig: svimmelhed, hovedpine Almindelig: søvn paralyse, somnolens, tremor, balanceproblemer, opmærksomhedsforstyrrelser, hypæstesi, paræstesi, sedation Ikke almindelig: myoklonus, amnesi, restless legs syndrome (RLS) Ikke kendt: kramper
Very common: dizziness, headache Common: sleep paralysis, somnolence, tremor, balance disorder, disturbance in attention, hypoaesthesia, paraesthesia, sedation Uncommon: myoclonus, amnesia, restless legs syndrome Not known: convulsion