Yes. Twenty+ years ago. Crazy stuff. I wouldn’t want to take it recreationally, too risky I think. You get truly confused and risk having very bad experiences (I’ve had those and they can be like living a nightmare that you cannot wake up from).

But, it also gave me some interesting experiences, like the confusion of senses. Truly smelling colors was a weird one, one that I remember very vividly. Other than that, it’s lots of fireworks for the mind.