4-FEA, A New Psychoactive Substance: What it is and how to test for it

Posted on 15 January, 2021 · 3 Minute Read

The drug-labs of the world never sleep and, even in the darkness of the Swedish winter, neither do we. In collaboration with Barcelona’s Energy Control International, DoseTest has been working to produce the world’s first lab-backed reagent tests for 4-FEA to make your testkits more powerful even as they sit in your fridge.
What are 4-FEA’s effects and known health risks?
4-FEA, seems to be a bit of a slow burner. Despite its relative longevity (3 years plus is a long time for research chemicals) and broadly positive reviews, 4-FEA never really obtained much popularity. Users broadly describe the experience of 4-FEA as more serotonergic and less stimulating than its closest relatives, 4-FMA and 4-FA, comparing it more to MDMA or MDA in its ratio.

Given the long come-up time of over 2-3 hours in some cases, this could quickly become a problematic substance if it was to enter the broader supply – if it was to be sold as MDMA, for example, a user might thoughtlessly redose once or even twice before it hits and end up in hospital at best. Among people who know what to expect, however, 4-FEA doesn’t seem to present much acute risk.
The high and relatively wide dose window is pretty forgiving and it doesn’t have nearly the redose impulse you’ll find among the pyrovalerones (a-PVP and so on) that dominate most of our posts.

We can’t comment on long-term effects, of course, beyond pointing out that fluoridated amphetamines, in general, have been associated with neural issues ranging from sharp pains called “brain zaps” to sudden fatal haemorrhages.

What are the testkit results for this substance?
With only three of our testkits reacting to 4-FEA, it certainly is one to keep a close eye out for.