Which drug is a cholinesterase inhibitor used to treat Alzheimer's disease?

Which drug is a cholinesterase inhibitor used to treat Alzheimer's disease?

• A. Donepezil
• B. Lurasidone
• C. Quetiapine
• D. Levodopa

Answer: (A)

Cholinesterase inhibitors boost acetylcholine in the brain, which can help improve memory and thinking in Alzheimer's disease by slowing the breakdown of this neurotransmitter. Donepezil is a reversible acetylcholinesterase inhibitor that is commonly prescribed for mild to moderate Alzheimer's disease, making it the appropriate choice here. The other drugs in the list do not fit this indication. Lurasidone and quetiapine are antipsychotics used for mood and psychotic symptoms, not to treat Alzheimer’s cognitive decline. Levodopa is used to replace dopamine in Parkinson’s disease to help motor symptoms, not to address Alzheimer’s-related cognition.

Cholinesterase inhibitors boost acetylcholine in the brain, which can help improve memory and thinking in Alzheimer's disease by slowing the breakdown of this neurotransmitter.

Donepezil is a reversible acetylcholinesterase inhibitor that is commonly prescribed for mild to moderate Alzheimer's disease, making it the appropriate choice here.

The other drugs in the list do not fit this indication. Lurasidone and quetiapine are antipsychotics used for mood and psychotic symptoms, not to treat Alzheimer’s cognitive decline. Levodopa is used to replace dopamine in Parkinson’s disease to help motor symptoms, not to address Alzheimer’s-related cognition.