Patients with probable or possible AD , and a Neuropsychiatric Inventory ( NPI ) total score > 5 ( with a severity score > or = 2 in at least one domain ) , were treated with donepezil ( 5-10 mg ) for 8 weeks , then randomly assigned to 12 weeks of double-blind augmentation therapy with either sertraline ( 50-200 mg ) or placebo .
