How does huperzine differ from other acetylcholinesterase inhibitors?

Drug out of China. Huperzine a might have some benefit similar to drugs such as donepezil, rivastigmine, or galantamine, (galantamine hydrobromide) as it too, is a cholinesterase inhibitor. Has received hype in the alternative literature, due to lack of branding and commercial ownership, but it is unlikely to be any better than the above prescription meds. Do not waste money pursuing the "chinese aricept".