Smurfy, I'm not trying to sound mean, but perhaps the daughter is doing what her father asked, and not providing any heroics for him. There is a point where meds aren't going to help the situation. I'm not sure what meds the facility says she is not providing, but remember they might be looking at profit as well.
The reason I say this is because my Mom who also has dementia all of the sudden stopped eating (although she never ate very much) and the woman who a month ago walked around with the aid of a walker is down to 80 lbs., and very weak. Trust me, she has a very loving family who monitors her daily by being up at the home. It was the staff at the facility who suggested to my sisters that we bring in Hospice. I try and get down once a month to see her, and her condition this time was alarming. I was shocked to see the her so small and withdrawn laying in bed. There is no malice -- just the cycle of life.
I can't say for sure if your good friend's daughter is not treating her father poorly, but as Judy said, the hotline is a good way to ensure that he is not being abused. I just thought I'd give you another scenario from a family that is totally caring for their mother.