The one thing I have found is that you must be proactive when dealing with hospital personnel. On 3 different occasions that I have had surgery, I had to tell the nurses that I could not take reglan. This is a pill that is given before the surgery to help combat nausea caused by the anesthesia. Reglan in a person with Parkinsons may cause extreme confusion that could last for quite some time after your surgery. Each time the nurses told me they were not aware of the effects of this drug. Now, to make sure I am not given this drug, I list it as something I am allergic to.