4-Fluoroamphetamine (4-FA; 4-FMP; PAL-303; "Flux"), also known as para-fluoroamphetamine (PFA) is a psychoactive research chemical of the phenethylamine and substituted amphetamine chemical classes. It produces stimulant and entactogenic effects, and is described subjectively as being between amphetamine and MDMA. As a recreational drug, 4-FA is sometimes sold along with related compounds such as 2-fluoroamphetamine and 4-fluoromethamphetamine.
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4-FA IS ABSOLUTELY NOT FOR HUMAN CONSUMPTION! WE REPEAT ABSOLUTELY NOT FOR HUMAN CONSUMPTION!