21st July 2023

A patient presents to you with a tremor and stiffness.

A patient presents to you with a tremor and stiffness. He reports this has been ongoing for several months, and he is finding it more and more difficult to manage his ADLs. His past medical history includes schizophrenia and reflux, for which he takes chlorpromazine, sertraline (started two weeks previously), ondansetron, ranitidine and PRN paracetamol.

Which of these medications are the most likely cause of his symptoms?

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