Hi, Im new into this forum. My Dad is 61 and has Parkinsons and Lewy Body dementia. Deterioration was gradual up until a half knee replacement operation on 25/07/11, following an epidural and sedation operation he flipped over night into what seems to be late stages of his illness. He cant speak, feed himself, drink himself, is incontinent etc. The quality of life now has just dissappeared. They are trying different levels of sedation, when under sedated he is highly distressed, hallucinating badly, not sleeping and too much aware of the awful state he is in. When over sedated he is peacefully sleeping more often than not. My question to anyone with simialar experiences is, why is it not ethical to over sedate? I keep being told they are not allowed to over sedate, but why not. I know my Dad and as euthanasia is not legal, the next best thing in his opinion would be 'knock him out!'. He would have said exactly those words. I cant stand seeing him suffer in this way. What are the law and regs on this?