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What is Vasanthi 45 years, was brought to casualty with abnormal movements which included persistent deviation of neck to right side one day before she was prescribed 1=laloperidol 5 mg three times daily from the psychiatry OPD. She also had an altercation with her husband recently. Which of the following is the most likely cause for her symptoms- and explain in detail?
Persistent deviation of the neck (Torticollis) after one day of taking haloperidol is a feature of acute muscular dystonia (acute drug dystonia).