What defines tardive dyskinesia?

Tardive dyskinesia is characterized by persistent and involuntary bodily movements, which can significantly impact an individual's quality of life. These movements often include repetitive motions such as grimacing, lip smacking, tongue protrusion, and rapid blinking, among others. This condition is most commonly associated with long-term use of antipsychotic medications, particularly the older, typical antipsychotics. The involuntary movements may not only occur in the facial muscles but can also affect limbs and trunk, leading to a wide range of abnormal motor activity.

The recognition of tardive dyskinesia is crucial for healthcare providers since it can sometimes be mistaken for other movement disorders. Understanding this condition is important for proper diagnosis and management, as it can lead to significant distress for affected individuals and complicate treatment plans for psychiatric conditions.