Constipation or diarrhea, dryness of the oral mucosa, fatigue, drowsiness, headache, dizziness, depression, anxiety, confusion, tinnitus, extrapyramidal disorders - spasm of facial muscles, trismus, spasmodic torticollis, opisthotonus, muscle hypertonia; neutropenia, leukopenia, atrioventricular block, porphyria, urticaria, bronchospasm, angioedema.
With long-term use of the drug in high doses, more often in elderly patients, there may be phenomena of parkinsonism, dyskinesia, galactorrhea, gynecomastia, menstrual irregularities.