Final answer:
The nurse's best response is that the medication may help to improve symptoms but is not a cure for Alzheimer's. Donepezil, a cholinesterase inhibitor, can enhance communication between neurons and may slow the disease's progression.
Step-by-step explanation:
The best response to the daughter of a 62-year-old woman who has started taking donepezil for early-stage Alzheimer's disease is, "This drug may help to improve symptoms, but it is not intended as a cure." Donepezil is a cholinesterase inhibitor, which works by blocking the enzyme that degrades the neurotransmitter acetylcholine. By increasing the levels of acetylcholine, it can enhance communication between neurons, potentially improving symptoms and slowing the progression of the disease. However, it is important to understand that Alzheimer's disease currently has no cure, and treatments aim to manage symptoms rather than reverse the condition.