Forgetfulness and confusion in the elderly should be treated according to the cause of the disease. For Alzheimer’s disease patients can be given drugs to improve cognitive function and brain cell activation drugs; for patients with depression can be given antidepressant drugs; patients with cerebrovascular dementia should be actively engaged in secondary prevention while oral brain cell activation drugs. 1. Alzheimer’s disease: at the onset of this disease, there will be forgetfulness and confusion, which can be given to improve cognitive ability such as donepezil and cabazitaxel; and improve memory such as olanzapine and piracetam. 2. Depression: antidepressant treatment should be given in accordance with the doctor’s prescription at the onset of the disease, and the representative drugs include paroxetine, fluoxetine and so on. 3. Cerebrovascular dementia: this disease should be actively given secondary prevention, such as oral aspirin, clopidogrel and other drugs anti-platelet aggregation; taking atorvastatin, resuvastatin and other drugs to stabilize plaques; taking olanzapine, fenelastine and other drugs to improve memory. Elderly forgetfulness, confusion may also be caused by other reasons, it is recommended to seek medical treatment in time, under the guidance of the doctor’s interview. Drugs should all be used under the guidance of a doctor.