Finally, on February 20, 1792, President Washington formally created the U.S. Postal Service with the signing of the Postal Service Act, which outlined in detail Congressional power to establish official mail routes.
The two concerns are firstly that Haldol (like all other antipsychotics) can cause tardive dyskinesia and as that is clinically related to Parkinson's this is an express concern with people with Parkinson's.
PARKINSON DISEASE CAUSE. The cause of Parkinson disease is not known. Normally, certain nerve cells (neurons) in the brain make a chemical called dopamine, which helps to control movement. In people with PD, these neurons slowly degenerate and lose their ability to produce dopamine.