HI DAN, Haldol is almost always a poor drug to use in a PWP for hallucinations. Haldol BLOCKS dopamine transmission in the brain. This will help the hallucinations but it totally counteracts the effectiveness of the Parkinson's treatment which is designed to increase dopamine. If your mom is getting worse (I would be very surprised if here parkinson's symptoms are not quite a bit worse)or even if she is not worse I would make it a point to call the neurologist and be sure he is aware of what she is being prescribed by the family doctor. I would be surprised if he was aware of it. There are strategies for approaching hallucinations some of which I had posted and some private e-mail. I will go through my "sent files and forward directly to you anything which seems to pertain. Please contact me if any further questions come up and let me know how your mom is doing. Good luck. Charlie Dan Meyers wrote: > > My mother, age 70, has been taking Parkinson medications (Sinemet) for > three years. This past weekend she had several instances of > hallucinations. Her family doctor who works closely with her > neurologist prescribed 1mg of Haldol, twice a day. I have read > messages that seem to indicate that Haldol could cause problems to PD > patients, under certain circumstances. Does anyone have any > information on this subject? > > - Dan Meyers > [log in to unmask] -- CHARLES T. MEYER, M.D. Middleton, WI [log in to unmask]