> “If someone had a putative diagnosis of Alzheimer’s disease, they might be on an Alzheimer’s drug like Aricept or Namenda,” said James Hendrix,

Aricept is an expensive drug and does about nothing. I dont even know why patients with AD are taking it.

http://www.alzforum.org/therapeutics/donepezil

> The effect size of donepezil's benefits is small and the drug does not modify the underlying pathophysiology of the disease