A 25 years old man presented to emergency ward with complaints of ‘stiffness and twisting’ of his neck and jaw. He describes these symptoms as very uncomfortable and completely involuntary. His medication include lithium and trifluphenazine. Which of the following is the next immediate step in management?
(Refer: Harrison's Principles of Internal medicine, 18th edition, pg no: 3544)
(Refer: Kaplan & Saddock's CTP 10th Ed Chap34.8 P7614)
Neurological side effects of antiparkinson agents
IV lorazepam
Benztropine IM
Diphenhydramine
Trifluophenazine