This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Patient on phenothiazines complains of involuntary perioral movement this is suggestion of - 
Select and explain. 
A. Tardive dyskinesia, B. Torsion dystonia, C. Good prognosis schizophrenia, D. All of the above
A: Tardive dyskinesia
Answer: A: Tardive dyskinesia 
Explanation: Ans. is 'a' i.e., Tardive dyskinesia o Tardive dyskinesia manifests as purposeless involuntary facial and limb movement like constant chewing, pouting, puffing of cheeks, lip licking (all are perioral movement) and choreoathetoid movement.