The medications used to treat dementia are as follows: 1. Improve cognitive function: including anticholinesterase, NMDA receptor antagonists and drugs that nourish brain cells, etc.; 2. Improve psychiatric symptoms: including anti-anxiety, depression drugs and anti-psychotics. Because the pathological causes of dementia will lead to the continuous aggravation of symptoms, and drug treatment only plays a role in slowing down the course of the disease, after stopping the drug will still aggravate the symptoms, so it is recommended that the patient in the symptomatic improvement, but also need to continue to carry out long-term drug treatment.