15th February 2025

A 53-year-old gentleman with a past medical history of schizophrenia attends A&E via ambulance.

A 53-year-old gentleman with a past medical history of schizophrenia attends A&E via ambulance. He is very worried as his eyes have been “rolling upwards”, with each episode lasting around five minutes. He does not feel in control of these movements. He explains that he is “doing well” otherwise and has had a recent promotion at work, although recently he has been feeling physically restless. He is concerned that his symptoms may be caused by a new antipsychotic medication that he has started. What medication is most likely to cause this side effect?

Select the SINGLE most appropriate option from the list below. Select ONE option only.