Ginseng for fatigue - Korean, American, Siberian?

[Guest guest]

For years I've been using Siberian ginseng for those days when it

feels like somebody siphoned all the gas out of my tank, and it seems

to help. For days when I'm really knackered I have the old standard

Prince of Peace Korean Ginseng bottles.

Recently though I've read that people should use Eleuthero (Siberian

Ginseng) and Red Korean Ginseng with caution, because it can ramp up

the immune system. But OHSU is doing a study using American Ginseng

for fatigue, so perhaps it doesn't have the same effect.

Can anyone lend some clarity on the safety of the various ginsengs for

use in MS? I don't want to make anything worse, but it would be nice

to actually get something done today besides surf the net and rest.