I'd like to share my experience with 5-APB for others seeking information. About a week ago I went through a gram of 5-APB purchased from a "reputable" vendor over a period of 4 days (3 separate rolls...yes this is extremely irresponsible). My ROA was insufflation as I hoped to reduce the length of the experience and to be able titrate doses easily. Being that it was a new compound, I titrated my doses over several hours which proved to be difficult with a serotonin releaser like 5-APB because redosing isn't very effective. The compound did provide euphoria at times but I don't think I reached the sweet spot in my 3 tests although I have a good idea of a good beginning dose for insufflation. Around 110-120mg should be a good range so that redosing is unnecessary. I found that redosing extended the experience and made me feel physically uncomfortable and "sketchy/paranoid" feeling in the head. That only happened the first time when I titrated really small doses over a long period of time. I was quite surprised at the large doses I needed to insufflate for somewhat mediocre effects. The experiences seemed to last around 7-10 hours depending on doses and redoses (a long time!). 5-APB seems to have a lot of potential but in my experiences, it seems to lack proper euphoria, although I did have feelings of empathy at times and I also had moments of a sedated body high, even almost falling asleep at one point. I would like to try this again after a break for my serotonin supply so I can experience it's full potential as well as trying out oral dosing!
I'd like to note that I have experienced very few side effects from binging such a large amount of 5-APB. I obviously was a little tired and unfocused for a couple days but I did not experience any unnatural depression. I have experienced a few periods of brain zaps as we all call it, that began about 5 days after the doses, but it has been very minimal and I can function at almost 100% brain capacity. This seems to have a similar profile of side effects as MDMA, but I would also recommend to use 5-APB with extreme caution because an unexperienced user may not be able to deal with uncomfortable side effects as well as I have. I have anxiety but I have learned to defeat it for the most part over the last few years, so I can handle post 5-APB/MDMA side effects fairly well and be comfortable.