[Observations of the course of patients with hyperkinesis]

This article reports observations made on thirty-six patients suffering from oral dyskinesia (tardive dyskinesia). In thirty cases, dyskinesia was observed to occur in the course of neuroleptic therapy. Occurrence of dyskinesia was dependent upon the use of a higher dosage rather than upon the duration of medication. Persons showing dyskinesia were not always subjects with previous cerebral lesions or patients of advanced age. Of patients with schizoform diseases, those were usually affected with oral hyperkinesia who had either partly or completely lost the process symptomatology, but who were unable to live a life satisfying them in every respect.