Drug induced dyskinesia: reality or myth?

Psychotropic medication employed in the long-term therapy of mental patients is etiologically linked to oral dyskinesia. Although the term "oral dyskinesia" is used interchangeably with "drug-induced dyskinesia" this author doesn't find sufficient scientific evidence from published studies to implicate the psychotropic drugs solely responsible for "oral dyskinesia." All the previous studies attempting to link drugs etiologically with oral dyskinesia suffered from lack of adequate information and methodological difficulties inherent in the question involved. In this paper the concept of "drug-induced dyskinesia" is rejected despite the fact that dyskinesia, from whatever etiology, is observed in certain individuals with high anxiety level and its dependent variable, the history of a psychotropic drug usage.