The story
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: A mild antianxiety tranquilizer (trademark Buspar) that is administered in the form of its hydrochloride C₂₁H₃₁N₅O₂·HCl and does not induce significant tolerance or psychological dependence. Full definition →
Etymology from Wiktionary, CC BY-SA 4.0.