God knows-its new, rare, and very little is known of it. Also, it seems very hard to get hold of, being mostly available to "advanced customers" ie big spenders who buy very large amounts of RCs. When you say anaesthetic, do you mean a full-blown general anaesthetic that will knock you out, or a local anaesthetic that will make you numb? From what I've read, this drug is a dissociative so I guess that yeah, it would knock you out in high enough doses. Course, taking a general anaesthetic for personal use is very fucking risky; just look at MJ and that whole "milk" scandal. But why would you need an anaesthetic, anyway?