Hexadrine is an unlicensed adrenal stack produced in rotating the Gray Zone laboratory locations by a distributed chemist network known only as the Cascade Labs. It combines six stimulant compounds — epinephrine analog, amphetamine derivative, synthetic cortisol blocker, crude SNT-reactive catalyst, vasoconstrictor, and a nootropic fragment — in a formulation that varies batch to batch because standardization requires resources the Cascade Labs don't have. When it works, it is brutally effective. When it doesn't, it causes cardiac arrest.