4-Fluoroamphetamine (4-FA)

4-Fluoroamphetamine is a psychoactive drug and research chemical of the phenethylamine and amphetamine chemical classes. It produces stimulant and possibly entactogenic effects. 4-FA is sometimes sold as a designer drug along with related compounds such as 2-fluoroamphetamine and 4-fluoromethamphetamine.The subjective effects of 4-Fluoroamphetamine include euphoria which some find similar to the effects of MDMA, increased energy (stimulation), mood elevation, excessive talking, bruxism, and suppressed appetite. 4-FA does not cause long-lasting depletion of brain serotonin, unlike its analogues 4-CA and 4-BA. This is thought to "reflect the inability of the fluoro-compound to be metabolized in the same way as the other haloamphetamines." 4-fluoroamphetamine is a releasing agent and reuptake inhibitor of dopamine, serotonin, and norepinephrine.