Flephedrone
group of stereoisomers
Flephedrone, also known as 4-fluoromethcathinone (4-FMC), is a stimulant drug of the cathinone chemical class that has been sold online as a designer drug starting in 2008.
Toxicity
Flephedrone has only a short history of human use and its toxicity is not well established.
Legality
Flephedrone has been illegal in Denmark since December 2008.
Flephedrone has been illegal in the UK since April 2010. Flephedrone has been illegal in the Lithuania since April 2010. Flephedrone is illegal in Brazil since 2017 as an analogue or derivative of cathinone. Flephedrone is most likely illegal in Australia as an analogue or derivative of cathinone.
Flephedrone has been illegal in Poland since April 2010.
Flephedrone has been classed as a narcotic in Sweden since October 2010.
In the United States, flephedrone is temporarily listed as a Schedule I controlled substance.
The public source identifies “Flephedrone” as group of stereoisomers. This brief keeps that definition visible, then builds a research path around Flephedrone, group and stereoisomers.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Feb 28, 2026. The linked authority identifier is Q114890579. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2008, 2010 and 2017.
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This entry incorporates text from “Flephedrone” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.