So, everything with pharmacological effects has its place in pharmacology and/or toxicology, if it is used theraupeutically or not.
Adrenochrome? is not used in medicine, unless for research purposes. And I would be very surprised, if it was used as a street drug. There are "better" and certainly cheaper solutions for that.
Concerning your last question: There are in fact *many* people *wanting* a *temporary* psychosis, in sharp contrast to a lasting psychosis, which, I am sure, virtually nobody could honestly want. -- DA