Past Information
It seems that most of the posts or mentions of 4-FMA are from the 2007-2012 period, when a lot of the "Fluoro" research chemicals were still new to the scene, and there wasn't a structural hierarchy outlined. Today, there are endless reports and posts to be found regarding the other "Fluoro"-chemicals such as: 2-FMA, 2-FA, and 4-FA. In most forums, 4-FA is regarded very highly and is still a very popular choice.... but it seems like discussion on 4-FMA has all but died out.
There seem to be several old posts that mention 4-FMA having a period of popularity in Sweden at some point, but as an English speaker it is rather hard to see if there is more information available somewhere. There are also some people who report having amazing experiences using the chemical, and it is sometimes described as "stronger" or more accurately "rougher" than 4-FA in it's effects (the comparisons to 4-FA seem to stem from the similar names, shared classification as research chemicals, and shared stimulant/empathogen effects). However, other users report it is as being "worthless" or saying that it "feels very neurotoxic" (although, most people seem to feel that one cannot feel neurotoxicity.... perhaps it is figurative and not literal). There are also a few people who ask how 4-FMA compares to Meth (Methamphetamine), due to the similar chemical structure..... but, generally these discussions go unanswered or aren't really answered in detail.
Current situation
Currently, little is really known about the chemical, other than the fact that it is primarily referred to under the spectrum of "research chemicals". If one attempts to search for information, it begins it get quite tricky. The primary problem is that most people confuse 4-FA (4-Fluoroamphetamine) with 4-FMA (4-Fluoromethamphetamine). In addition to this issue, there seems to be a lack of quality trip reports or detailed discussions regarding dosages, ROA, effects, and duration.
The conflicting reports that can be found online make it very difficult to understand what the effects of 4-FMA can be categorized as. One begins to wonder if perhaps 4-FMA is inconsistent depending on the ROA or the biochemistry of the researcher (similar to other chemicals like 3-FPM), or if perhaps there are other explanations (people confusing 4-FA / 4-FMA or even other chemicals, or perhaps different sources sending out wildly different versions).
Links that may be useful:
- Wikipedia (4-Fluoromethamphetamine)
- Tripsit (4-FMA)
- Erowid Trip Report (4-Fluoromethamphetamine)
- Erowid Trip Report (Halogenated Computer Zombie)
- Blue light discussion of 4-FMA (2007)
- Blue light discussion of 4-FMA (2011)
- Blue light discussion of 4-FMA (2013)
- Drugs Forum discussion 4-FA vs 4-FMA (Dutch)
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