The active ingredient in many cough medications. Also useful for getting high as a kite. See, it surpresses coughs by doing something-or-another to the sigma receptors in your throat, and if you drink a whole big bunch of it, it does the same thing to the receptors in your brain. So your brain doesn't cough. Or something like that. Do be careful with it though, and read the FAQ at www.frognet.net/dxm/contents.html before you try this dangerous and stupid stunt.
Node in progress--excuse our dust. /msg me if you have suggestions.
Descriptions
Trip Reports
Stuff You Should Know About If You Actually Decide To Take DXM, You Fool
Miscellaneous