The present invention is directed to a method for preventing and/or treating Alzheimer's disease. The method comprises administering to a subject in need thereof an effective amount of dapansutrile. The method reduces neuroinflammation and improves the cognitive functions such as learning and memory processes of the subject. Dapansutrile can be administered to the subject orally at a dose of 100-2000 mg/day for 3 months to 5 years or longer.
