A male client with delusional disorder has been started on H…

A male client with delusional disorder has been started on Haldol (Haloperidol) 5 mg PO twice a day, Tylenol 2 tabs PO prn, and Ativan (Lorazepam) 2 mg prn for agitation. He is complaining of a sudden painful stiff neck and jaw muscles, which started a few hours after he took his medication. These symptoms are most likely related to: