I remember it from Fear & Loathing, but I always assumed it was made up. Adrenachrome, not Fear & Loathing.It's barely a real thing at all; the pop culture conception comes entirely from Fear And Loathing In Las Vegas, and I always assumed it was sort of a proxy for dimethyltryptamine in that context, because adrenachrome is not something that's ever really been used or available as a drug.