Drowsiness, sedation, nocturnal confusion, hyperactivity, lethargy,
psychotic reactions, restlessness, disturbances of accommodation, vertigo and headache.
Extrapyramidal reactions (including Parkinsonism with motor retardation, rigidity, mask-like facies, tremor, salivation), dystonic reactions (including facial grimacing, tics, trismus, torticollis, opisthotonos, oculogyric crises), tremor, muscular rigidity, akinesia, akathisia.