Science Fair Project Encyclopedia
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Donepezil, marketed under the trade name Aricept® (Pfizer), is a centrally acting reversible cholinesterase inhibitor. Its main therapeutic use is in the treatment of Alzheimer's disease where it is used to increase cortical acetylcholine. It is well absorbed in the gut with an oral bioavailability of 100% and easily crosses the blood-brain barrier. Because it has a half life of about 70 hours, it can be taken once a day.
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