A patient on long-term Haloperidol therapy develops involuntary, repetitive movements of the tongue and face. This condition is most likely:
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Correct answer: Tardive dyskinesia
Tardive dyskinesia is a delayed-onset extrapyramidal symptom resulting from chronic D2 receptor blockade, leading to receptor supersensitivity. It is often irreversible and characterized by orofacial dyskinesias and choreoathetoid movements.
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