02-28-2007, 03:19 PM
A 49-year-old woman, who is being treated with chemotherapy after surgery for breast cancer, presents at the emergency department of the local hospital. She had just started taking prochlorperazine for nausea the day before. She is brought in by the her husband because she has been acting bizarrely over the past 24 hours, with waxy flexibility in her movements and mutism. She has no previous psychiatric history. Her physical examination, laboratory tests, and vital signs are all within normal limits. Which of the following is the most appropriate pharmacotherapy