From Macleans:
New drug treats advanced Alzheimer's disease
A recently approved drug for Alzheimer's disease slows the progression of the moderate to severe forms of the disease, and may take some of the pressure off people caring for loved ones with the devastating dementia.

The drug, called memantine (brand name Ebixa), is the first that Health Canada has approved for the later stages of Alzheimer's disease.

"We feel that we have a drug now for the moderate to severe stages of the disease which has merit, which will be useful for patients and families," says Dr. Sharon Cohen, a behavioural neurologist and assistant professor of medicine at the University of Toronto.