What I've read so far (only 3 articles) says it's got promise for Alzheimer's. It's late, so I'll get into it further next week.
I wasn't really looking for skeptical articles at this point, but one came up prominently that got me laughing so hard I thought you might appreciate it. Please don't take this to mean I'm taking any kind of stance on Huperzine A; it's too early, and I have a
LOT more reading to do. The article is about a supplement
mixture that
contains Huperzine A; it doesn't really have anything negative to say about Huperzine; just that a lot isn't known/proven yet. It's more about the charlatanism in the claims about some of these mixtures and how they're marketed.
Procera AVH: A Pill to Restore Memory
I
have seen the
Science Based Medicine site before, and I think I'm getting to like it so far. It also led me to a couple of other sites I'll be checking out soon.
Supplement Geek—Supplement Reviews Without the Hype
The Skeptic's Dictionary
The Skeptic's Dictionary—Procera AVH® and Ceraplex
Doc