Does anyone have an reliable information on whether one time use of 4-FA carries risks in terms of serotonin depletion? I have read somewhere that it does not cause this, but I don't have a reference. We know that the reason why empathogenic drugs are dangerous is that they deplete serotonin. I have aspergers syndrome, and empathogenics help me overcome most of the social symptoms. If I could safely use 4-FA once weekly, it would pretty much change my dating and social life. What do you all think?