Donepezil Hydrochloride is primarily used in the treatment of Alzheimer's disease. It functions as a cholinesterase inhibitor, which helps to increase the levels of acetylcholine in the brain. This neurotransmitter is crucial for memory and learning processes, which are often impaired in Alzheimer's patients. By enhancing cholinergic function, Donepezil Hydrochloride can improve cognitive function, slow the progression of symptoms, and enhance the quality of life for patients. It is typically administered orally in tablet form and is often prescribed in the mild to moderate stages of the disease. Additionally, it may be used in combination with other treatments to manage symptoms more effectively. Regular monitoring and dosage adjustments by healthcare professionals are essential to optimize therapeutic outcomes and minimize potential side effects.