4-Fluoroethylphenidate (commonly known as 4F-EPH) is a novel synthetic stimulant of the substituted phenethylamine and piperidine classes that produces long-lasting euphoric and stimulating effects associated with potent monoamine reuptake inhibitors when administered. It is a closely related structural analog of the commonly prescribed methylphenidate as well as a ethylphenidate. Based on its similarities to other memebers of this class, it is speculated to exert its activity as some form of double or triple monoamine reuptake inhibitor. 4F-EPH has little to no history. It was initially developed as a replacement and successor for compounds like ethylphenidate, which became illegal in the United Kingdom on April 2015, and later 4F-MPH.
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