When drugs such as Donepezil and Huperzine A are ingested, they travel through the blood stream, finally reaching vital neural receptors. Drugs like these inhibit the acetylcholinesterase enzyme responsible for breaking down acetylcholine causing an increase in ACh. This rise in ACh is correlated with deeper REM sleep cycles which therefore improves memory. After taking a capsule of Huperzine (150 mcg) one night, I found no apparent changes. Has anybody else who has had experience with these drugs found a drastic change?
closed as primarily opinion-based by jonsca, Satwik Pasani, Amory, biogirl, fileunderwater Nov 14 '13 at 11:04
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