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-: (A) Acute drug dystonia, (B) Conversion reaction, (C) Acute psychosis, (D) Cerebrovascular accident
Answer is A. Persistent deviation of the neck (Torticollis) after one day of taking haloperidol is a feature of acute muscular dystonia (acute drug dystonia).