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I have never tried it, but some people say it is in between amphetamine and mdma, but more clear headed. Music sounds nicer and you may want to move around a bit. You may experience a low the days after.
For more information I recommend you read a lot of reports here: https://erowid.org/experiences/subs/exp_4Fluoroamphetamine.shtml

If you try it have fun :)

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