Mine was actually on a "legal" substance. It was a liquid called Red Dawn. I'm 90% sure it had DXM or something similar in it, because it went off the market for a while and came back with a new formula that doesn't do anything.
Other ingredients were yohimbine, phenibutic acid, caffeine, and just about every other legal substance that will actually do something to you
I used to do it all the time. Buy a $20 bottle of it, drink half, and trip out. It was like a combination of MDMA, alcohol, and ketamine
But one night my buddies and I bought a $60 bottle and split it amongst the 3 of us
I was already drunk and passed out soon after I dosed, but when I woke up 5 hours later, I had been transported into hell
The walls were waving diagonally, I fell down many times because I thought the floor was sideways.
Finally made it to the bathroom and projectile vomited all the contents of my stomach
Went downstairs to see if everyone else was awake
One of my friends was on the couch in the fetal position, rocking back and forth. The other locked himself in the bathroom and would not come out
I tried to watch a movie, but I felt so fucking crazy it was like having a never-ending panic attack.
Spent the next 3 days in that house, forcing myself to drink water so that when I threw up it wasn't pure bile.
Couldn't sleep, ended up reading all the ingredients on everything in the pantry, fridge, freezer.
Took a 6 hour long bath and shaved my legs? (im a dude)
When the 4th day came around I was only throwing up every 4 hours and felt like I could function enough to drive my car.
After that everything I ate/drank tasted terrible for 3 days (even water)
Throat was ripped apart from throwing up so much bile I got laryngitis and couldn't talk, along with intense sore throat.
That is the only time I truly thought I was going to die. Severe insomnia, dehydration, starvation, paranoia, hallucinations.