Never tried it....I don't like anything that puts you on your ass....My friends used it a few times and every time fell into the "K Hole" which they just sit or lay there and cant move talking like they're James toney or Nate Diaz....the whole experience only lasts 2 or 3 hours but you never know
I saw a documentary on some high school girl who was super hot and smart. She OD' on ketamine and now she can't even talk right. Her mental state is of a 12 year old. Her parents are devastated. That shit aint cool.