BUY 4-Fluoroamphetamine Crystal 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.
4-Fluoroamphetamine is a substituted amphetamine that offers effects somewhere between those of amphetamine and MDMA. Its been a member of the research chemical market since the late 2000s.
It has at times been a more popular research chemical because it does have a unique and potentially desirable effect profile.
Not enough is known about the drug to be sure about its safety level, particularly with chronic use.
Usage
4-Fluoroamphetamine (4-FA) is popular in the Netherlands where it is predominantly used for its specific effects (77% of users) rather than its legal status (18%). 4-FA has become illegal since May 2017.
Toxicology
The LD50 (mouse; i.p.) of 4-FA is 46 mg/kg.
4-FA has only been involved in one death worldwide, where it was combined with amphetamine, methadone and benzodiazepines.
Pharmacology
4-Fluoroamphetamine is a releasing agent and reuptake inhibitor of dopamine, serotonin, and norepinephrine. The respective EC50 values are 2.0 x 10?7 M, 7.3 x 10?7 M, and 0.37 x 10?7 M, while the IC50 values are 7.7 x 10?7 M, 68 x 10?7 M, and 4.2 x 10?7 M.
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