From the nervous system: extrapyramidal disorders - spasm of facial musculature, trismus, rhythmic protrusion of the tongue, bulbar type of speech, spasm of extraocular muscles (including oculogic crisis), spastic torticollis, opisthotonus, muscular hypertonus; Parkinsonism (hyperkinesis, muscle rigidity is a manifestation of dopamine-blocking effect, the risk of development in children and adolescents increases when the dose is exceeded 0.5 mg / kg / day), dyskinesia (in the elderly, with chronic renal failure), drowsiness, fatigue, anxiety, confusion, headache, tinnitus.
From the digestive system: constipation or diarrhea, rarely dry mouth. Allergic reactions: urticaria.
From the endocrine system: rarely (with prolonged admission in high doses) -ginekomastia, galactorrhea, menstrual cycle disorders.
Other: at the beginning of treatment, agranulocytosis is possible,rarely (when used in high doses) - hyperemia of the nasal mucosa.