T ardive dyskinesia (TD), a hyperkinetic movement disorder causally related to dopamine receptorblocking drug (DRBD) exposure, is a well-recognized iatrogenic disorder in adults1 and less commonly seen in children and i n f a n t ~ . ~ J Although the literature on TD mainly focuses on patients treated with DRBDs used as antipsychotics, DRBDs are also used to treat a wide array of medical, chief...
