Tardive dyskinesia (TD) is a disorder that involves involuntary movements or repetitive, uncontrollable movements, typically of the face and tongue, but it can also affect other body parts. It is often associated with long-term use of certain medications, specifically antipsychotics. These movements can range from mild to severe and can significantly affect an individual’s quality of life.

TD is considered a neurological condition that develops gradually. It is primarily seen in individuals who have been on medication for an extended period, which affects the dopaminergic pathways in the brain.