On the Rarity of "Irreversible" Oral Dyskinesias Following Phenothiazines

Abstract

This author's inspection of the literature on oral dyskinesia following prolonged phenothiazine administration reveals that many of the cases reported do not meet the criteria necessary to establish the existence of a tardive, irreversible syndrome. He concludes that the incidence of this side effect has been misrepresented and that it should not be regarded as a significant danger in phenothiazine treatment.