My husband was diagnosed with Parkinson's and mild cognitive impairment about 4 years ago. Up until a month ago, the dementia was infrequent and not much of an issue. Suddenly, he started seeing people in the house, who he believes are my friends, and is now distrustful and agitated most of the time.....he even called the police one morning. His Neurologist prescribed Nuplazid but after 3 weeks, things have gotten worse. The Dr. wants to try a different drug but my husband refuses to even consider it.....he says the Nuplazid is working! I've tried to get him to call the Neurologist or our PCP but he refuses. When I tell him I'm going to call, he gets very angry and even called the Neurologist office and told them they no longer have permission to discuss his medical condition with me and threatened to destroy my phone. The Neurologist keeps telling me I have to convince my husband to take the new drug. I'm at my wits end!