Hi, my father in law is living with us (has been for the last 4 years) and has dementia, he has been declining steadily but not too bad. He was diagnosed with prostate cancer a few months ago and was prescribed hormone therapy as he is 86 and may not tolerate surgery/radiotherapy. We were told that he'll die with prostate cancer and not from it. His dementia seems to have gotten a lot worse recently, we see articles online that this hormone treatment may cause the onset of dementia in older patients but we were never told this before the treatment and our GP doesn't think it's related. I can't find any information on the effect of this treatment on someone who already has dementia but we are certain that it made his dementia a hell of a lot worse, does anyone have any further info on this? many thanks