Donepezil and Memantine for Moderate to Severe Alzheimer's Disease

For the first time, we have robust and compelling evidence that treatment with these drugs can continue to help patients at the later, more severe stages of the disease. We observed that patients who continued taking donepezil were better able to remember, understand, communicate and perform daily tasks for at least a year longer than those who stopped taking the drugs.
-- Professor Robert Howard

Read more in the Alzheimers Reading Room

http://www.alzheimersreadingroom.com/2012/03/donepezil-and-memantine-for-moderate-to.html