I took a low dose of DXM when sick and it made me feel relaxed, made me not cough, music sounded better, playing computer games on it it was almost as fun as playing them while stoned and on acid, and the green anise cough syrup tasted delicious and gave me an interesting fever dream where I was running in a maze with brick walls that kept changing size/dimension and disappearing. I am not sure who or what I was running from in the dream?
If you consider nitrous-oxide a disassociative drug it made me laugh and relaxed me during dental surgery so that I did not feel the IV of Valium or remember any of the surgery for my very impacted wisdom teeth. Nitrous-oxide was interesting but confusing on Psilocybin mushrooms and THC. Nitrous-oxide was better on its own, while drunk and stoned, or just mixing it with the high from smoking Sativa/Indica marijuana or hashish. I never went on crazy n2o binges with the chargers, but I had food grade n2o maybe 2-3 times, and medical grade nitrous-oxide only once.
My mother had a low dose of Ketamine during a common medical test, and she had a bad trip and said she did not feel fine for 2-3 days after, so I never used it.
I have never used ANGEL DUST OR PCP, but it was super common and popular among teens and even young adults and even on super high doses nobody went crazy, attacked or killed anyone, got hurt or killed, and lots of times people would get wet to get fucked up and feel like they were floating, gravity was off, and the high from smoking it went well with marijuana. Of course most people were not stupid and did not drive on it, smoked it at home, parties, at school, at bars, did not overdo it, and had someone else drive who had not smoked any dust as it made movement difficult, if not impossible.