Current Approach. Abnormal involuntary dyskinetic movements in schizophrenia patients have been documented for more than 140 years. However, after introducing into clinical practice antipsychotic medications, movement disturbances became a relatively frequent phenomenon. Medication-induced movement disorders are divided into two groups a acute, which appears during several hours or days after beginning treatment with psychotropic medications, and b delayed or tardive motor disturbances that occur after months or years of taking psychotropic drugs. In the terms present meaning, the latter are