What types of meds has your loved one been on for the aggression and confusion with Parkinson’s dementia?

And what you think worked for your loved one?

My dad 74 never has been on meds. No blood pressure problems, no high cholesterol or anything then he was diagnosed with non motor Parkinson’s. Since May 2018 he has come to sundowners, confusion, walks in a panic, can’t hold conversation, and has been aggressive and now has to go to memory care. I just want to know what other people like him take? What is happening? I don’t remember families having this issue when I was a child.

The Parkinson’s symptoms and dementia that dad has sounds like Alzheimer's?