Post-marketing Surveillance of Long-term Administration of Donepezil Hydrochloride -Investigation of the Clinical Condition and Safety in Patients With Alzheimer's Disease-

The purpose of this study is to investigate the following about donepezil hydrochloride administration in patients with mild or moderate Alzheimer's Disease in clinical practice: cognitive function, Functional Assessment Staging (FAST) score, adverse events/adverse drug reactions, and patient background.