There's a link below to a BBC programme I watched recently, it covers the placebo effect and how when all the group were give a placebo nearly half said the new "medication" made them feel better and even when they were told it was a placebo and the tablets only contained rice flour wanted to carry on taking them.
Aricept/Donepezil only ever claims to work in 40 to 70% of people and then it only claims to slow it down, some of the extravagant claims people have made on here could never be made by the manufactures as there is no possibility of it reversing the disease and the manufacturers can't and don't make this claim.
It's a matter of debate as to whether amyloid plaque is actually a cause or a symptom of AZ in the first place, the generally accepted opinion is that it is a cause but there's some serious opinion that it's not and is actually a symptom so Aricept may be addressing a symptom and not a cause, so who actually knows.
I read something recently where they said that finding amyloid plaque in people with AZ and concluding that it's the cause is a bit like going to burning buildings and finding the fire brigade there means they the ones starting the fires.
Originally under the patent name of Aricept it was prescribed for late stages and was very expensive, when the patent ran out it was made generically under the name of Donepezil and became much cheaper then got prescribed as early to middle stages. My wife got it early under the original Aricept brand as she was diagnosed at 55 and was given it early stages as part of a test and the consultant had to get authorisation to do this, I don't have a clone of my wife so I don't know if it worked or if things would have gone the same way without it but either way like most of the people sectioned with her, long term it doesn't work, maybe it slowed it down, maybe that's what made her decline more episodic which went plateau to over the edge of a cliff sometimes in a day.
Maybe the French are right and it's better to spend the money on care and physical help rather than medications, help people live a better quality of supported life for the person with AZ and their carers rather than a possible larger quantity of life and offering some real support rather than a medical crutch useful or not...who knows.
K
https://www.bbc.co.uk/programmes/b0bmblb8