Kava kava is the only thing I have found. MAKE SURE AND BUY FROM bulakavahouse.com
The quality of this plant really dependson the vendor.
It is cheap, costs maybe $20 per 1/4 kilo. I just put three heaping tablespoons in some high fat milk, mix it, let sit, mix, then strain through a cloth into another cup which will leave you with some brown milk.
The brown kava extract milk that you now have will numb everything it touches as it goes down. And it is more similar to xanax than any other herb that I have tried.
Sedates you a lot, so test it without going to work and stuff first to find the right dose.
There is also a RC called etizolam that feels better than xanax in my opinion. Lastslonger, and I don't get 'bars4dayz syndrome' like I do with xanax. Worth looking into. Probablymore healthy. I can PM you a vendor.