I had been using 6-APB somewhat frequently, which I now recognize was a mistake. My scale had broken, so I eyeballed what I thought was my usual moderate dose of the fumarate salt and parachuted it around 8:30 PM.
The experience itself was typical of what I had come to expect from 6-APB: strong euphoria, tactile enhancement, stimulation, mild visual distortions, and an incredible urge to talk and connect. The roll lasted until about 6-7 AM, which was normal for me. Nothing about the peak felt more intense than previous sessions.
What caught me completely off guard was the aftermath. My pupils stayed massively dilated until at least 2 PM the following day, and they were still noticeably enlarged until 5-6 PM. I felt incredibly spaced out the entire day, almost as though I was still tripping. This had never happened in any of my previous experiences with the substance.
I suspect my serotonin was severely depleted from overuse, and this last session pushed things too far. The lesson here is clear: respect the spacing guidelines. I had been using it far too frequently, probably every couple of weeks, and my brain was clearly struggling to recover. I have since committed to a long break from all empathogens and psychedelics to allow my neurochemistry to rebalance.
The experience itself was not unpleasant, but the extended aftereffects were alarming and made me realize I was playing a dangerous game with my serotonin system. If your comedowns are getting worse or lasting longer, take that as a serious warning sign.