A 24-year-old male presents to the emergency department with…
A 24-year-old male presents to the emergency department with involuntary, sustained muscle contractions in his neck, causing his head to twist to the side (torticollis), and upward deviation of his eyes (oculogyric crisis). The symptoms started shortly after receiving an intramuscular injection for acute agitation in the field by emergency medical services. The patient has no prior psychiatric history. Which medication is the most likely cause of this presentation?