4-FMA Powder


Also known as 4-FMA, is a lesser-known novel stimulant-entactogen substance of the amphetamine class. 4-FMA has chemical affinities with methamphetamine and 4FA. It was initially reported to be contained as an ingredient in some of the range of party pills sold internationally by the Israeli company Neorganics from around 2006 onwards, but this was later shown to be incorrect and this ingredient was eventually identified as the closely related compound 2-fluoromethamphetamine. It is not well-known about its pharmacology. However, it could be able to produce its effects through the increase of norepinephrine, dopamine and serotonin, which are all found in the brain.

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QuantityDiscountPrice Per Item
1-4 0%  19,99
5-9 5%  18,99
10-14 10%  17,99
15-19 15%  16,99
20-49 20%  15,99
50-99 25%  14,99
100-199 30%  13,99
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Order 4-FMA (4-Fluoromethamphetamine)

4-Fluoromethamphetamine, similar to its structural analog 4-FA, 4-Fluoromethamphetamine is thought to act as a releasing agent and reuptake inhibitor of dopamine, serotonin, and norepinephrine, producing stimulating amphetamine-like effects at lower doses and more euphoric, entactogen effects similar to MDA at dosages above 125mg.


Researchers have found some evidence that indicates some similarities between the “Serotonin Release” of 4-FMA and other popular empathogens such as: MDA, 4-Methylmethcathinone, and 4-fluoroamphetamine.


The mechanism of action of 4-FMA effectively boosts the levels of the norepinephrine, dopamine, and serotonin neurotransmitters in higher doses in the brain by binding to and partially blocking the transporter proteins that normally clear these monoamines from the synaptic cleft. This allows dopamine, norepinephrine, and serotonin to accumulate within various regions of the brain, including its reward pathways, resulting in stimulating, euphoric and entactogenic effects.

4-FMA is a CYP450 inhibitor. It reduces the metabolism of methamphetamine, which has the effect of increasing its potency, duration and systemic toxicity while also reducing its cellular toxicity


In low doses, 4-FMA has been reported to be a lackluster nootropic for general productivity.  Such usage would be strongly discouraged however, due to the increased risks for neurotoxicity and other dangerous side-effects. The reasoning for this warning is based on the studies showing that 4-FMA is similar to MDA, and belongs to the entactogen class. Using any entactogen frequently is considered dangerous, and it is seen as unwise to take “microdoses” below the minimum dose required to experience a “roll” with members of the entactogen class. At higher dosages, it is known to become dysfunctional and recreational due to the scattering quality of its euphoria and stimulation.

Similar to MDA, MDMA, 4-FA, and other substances that produce distinct pleasurable tactile “roll”-like sensations, which is typically linked to serotonin-releasing properties, 4-FMA has been reported to be able to produce similar entactogenic effects in addition to traditional stimulant ones. Some reports suggest it tends to come with more side effects and bodily strain than other fluorinated amphetamines, explaining its lack of popularity and availability.

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Weight1.5 g

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