Yes; it's extremely powerful if used correctly. Oh believe me, it works! Here's something I wrote about it a while back: "I tried the tincture for the first time yesterday (my experience thus far consisting of 20x, or just plain old leaves), and something that would have been nice to have would have been a life-size dummy and a sturdy knife. Instead, I ended up grabbing a pair of scissors and started stabbing a box, neglecting to realize that it contained cans of cat food. The divine Stabbing Goddess of Salvia was speaking through me.

I wanted to stab the fuck out of something, so i picked up a cardboard and started going at that! I could have hurt myself (or perhaps even someone else had they made the fatal mistake of pissing me off at that moment). The point? Same goddam point I made a while back on this thread about it not being a "party drug" and how it should be used with caution and respect. It's recommended that a person have a 'babysitter' when using higher doses. I guess I could have used one yesterday, or at least a life-sized dummy to stab...
The first time I tried Salvia, I smoked a big bong hit of 20x. When I laid back, I imagined I was being zipped into a sarcophagus and carried off into space by two beings. When I 'woke', it was as if reality was a rug that had been pulled out from under me. Everything was plastic and I was part of everything, everything was part of me. I literally thought I was an old tall ship with a sort of rigging for arms. The room was like a ferris wheel, spinning slowly. Acid, mushrooms, bromo-mescaline, forget about it, none of that shit came close to the carnival ride i went on for that 10-15 minutes. I don't remember getting up, but i did, and screamed a bit. Pure loss of ego and temporary insanity! I hate to think what could have happened if no one had been there with me. I might have accidentally walked out of my apartment window or something. Another time, I experienced non-euclidean geometery (the intersecting of two parallel lines), a doorway draped with writhing snakes, and a gigantic insect, part of which had gotten stuck in the ceiling of the room....holy fuck!!!!!
Kids -- use responsibly! Don't flip out and kill someone like I could have! This sort of thing gives drugs a bad name, dig? Good! Now quit fucking arguing with me about this, quit leading me off on tangential diatribes about how the government shouldn't educate, stop uploading those fucking asinine videos to youtube that make parents shit their drawers, and get yourself a life-size dummy to stab or a babysitter if you try this stuff. Thank you, that is all."