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.
Haloperidol is not for use in psychotic conditions related to dementia. Haloperidol may cause heart failure, sudden death, or pneumonia in older adults with dementia-related conditions. You should not use this medication if you are allergic to haloperidol, or have certain conditions. Be sure your doctor knows if you have Parkinson's disease.