Ok so i have a few references for you to look at..

http://www.wellcoolstuff.com/salvia.html
http://www.wellcoolstuff.com/salviaquality.html
http://en.wikipedia.org/wiki/Salvia_divinorum

Would you ever consider trying this, even just once? it seems to have no long term effects other than a 24hour after effect of depression if used incorrectly or from an unstandardized extract. Other effects arn't proven, though remember if you only used it once it's not going to have such adverse effects. None infact. It isn't addictive, doesn't have to be smoked so no harm done to your lungs, and effects to the brain only are done depending on the individual. Discuss.