Tardive dystonia.

Unlike tardive dyskinesia (TD) which is much better known by clinicians, tardive dystonia is a more recently recognised complication of neuroleptic use. It refers to chronic dystonia related to the use of neuroleptic drugs and may be an even more disabling condition than TD. This article reviews its epidemiology, clinical features and treatment aspects, and suggests that it should be separated from TD as a distinct entity.