just like every other drug on the market.
I agreed with you up till this point. Not sure which market you mean here. The nitrous oxide I referred to is the food market. There is also N₂O in the car market and dental markets. Only dentistry has other drugs but I doubt that is what you are referring to. Assuming you meant the black market of recreational drugs, no they are not all equal. N₂O can permanently damage the nervous system after copious use, but not really mj, lsd, or shrooms.