WHAT TO TRY FIRST
The National Institute for Health and Care Excellence - the organization that provides the British government with independent evidence-based advice on drugs and treatments - recommends any of the FDA approved cholinesterase inhibitor drugs (donepezil, galantamine and rivastigmine) for mild-to-moderate Alzheimer dementia (Score of 10 to 26 out of 30 on the mini-mental status test [MMSE] of basic thinking skills). For severe Alzheimer dementia (MMSE score of less than 10), they recommend memantine (since the guideline was written, FDA also approved donepezil 23mg for severe dementia).
WHAT ELSE TO TRY
Behavioral therapy, social support, exercise.
National institute for Health and Care Excellence. Donepezil, galantamine, rivastigmine and memantine for the treatment of Alzheimer's disease. 2001 (revised 2011 Mar). NGC:008659
American College of Physicians and the American Academy of Family Physicians. Current Pharmacologic Treatment of Dementia: A Clinical Practice Guideline from the American College of Physicians and the American Academy of Family Physicians. Annals of Internal Medicine. 2008;148:370-378