A client is receiving haloperidol decanoate (Haldol decanoate). He has stiff muscles, restlessness, and internal jumpiness. The client has all of the following medications prescribed as needed. Which...

A client is receiving haloperidol decanoate (Haldol decanoate). He has stiff muscles, restlessness, and internal jumpiness. The client has all of the following medications prescribed as needed. Which one would be most appropriate for the nurse to administer to decrease the client's symptoms?

1. Lorazepam (Ativan)

2. Benztropine mesylate (Cogentin)

3. Trazodone (Desyrel)

4. Olanzapine (Zyprexa)