Donepezil’s mechanism of action

The primary mechanism of action of Donepezil (Donepezil) involves the regulation of the neurotransmitter acetylcholine. It is an ethanolamine cholinesterase inhibitor and its action mainly goes through the following steps:

First, it is critical to understand the basic principles of the cholinergic neurotransmitter system. In the synaptic cleft between neurons, nerve impulses are transmitted by releasing neurotransmitters. In the cholinergic nervous system, acetylcholine is an important neurotransmitter responsible for transmitting signals between neurons.

Under normal circumstances, the released acetylcholine needs to be rapidly broken down by the enzyme ethanolamine esterase (acetylcholinesterase) after nerve impulse transmission to maintain normal transmission of nerve signals. However, in people with Alzheimer's disease, the activity of ethanolamine esterase is too high, causing the released acetylcholine to be rapidly broken down, reducing its concentration.

Donepezil prevents the excessive breakdown of acetylcholine by inhibiting the activity of ethanolamine esterase. This increases the concentration of the neurotransmitter acetylcholine in the synaptic cleft, helping to improve neurotransmission. By increasing acetylcholine levels, donepezil helps enhance communication between neurons, especially in areas of the brain associated with learning, memory, and cognitive function.

Overall, donepezil’s mechanism of action improves cognitive function and quality of life in patients with Alzheimer’s disease by regulating acetylcholine levels. This mechanism of action is key to the positive effects of donepezil in the treatment of Alzheimer's disease.

Donepezil has been launched in China and has been included in medical insurance. Patients can purchase it domestically. The specification of 5mg*7 tablets is about 100 yuan. For specific prices, please consult the local hospital pharmacy. The cheaper ones abroad are the original drugs marketed in India, which are also Japanese Eisai original drugs. The specifications of 5mg*100 tablets are about two to three hundred. It is still very cheap compared to domestically, and the ingredients and efficacy are consistent with the domestically marketed original drugs.