Tardive Dyskinesia - Other DRA-induced Disorders

TD and its various related conditions are also known as "hyperkinetic extrapyramidal syndromes" or EPS. The term EPS should be avoided, as it does not really "name" the disorder. Related conditions, which may also be caused by use of a DRA, include drug-induced parkinsonism; immediate reactions to DRAs, such as acute dystonia and acute akathisia; more delayed syndromes, including tardive dystonia and tardive akathisia; and either acute or tardive withdrawal "emergent syndromes" in which symptoms appear when treatment with the drug is stopped; and neuroleptic malignant syndrome.

	Etiology