What were the effects? I have heard about this and not experienced it which is good.
I was just about to write a whole blog post answering your question. But I'll give you the highlights:
1. isopropylbenzylamine kind of mimics meth when you shoot it except for euphoria. The rush comes like a hot flush, then you feel speedy and there is something like a cough but you also feel dazed and a bit confused. It does not have that sharp "this is who I am" feel that good meth gives me. I had trouble forming coherent sentences and getting my thoughts into words. I initially thought this was the result of too big a "meth" shot but I was wrong - this is typical of this chemical
2. I did not feel super energetic but I was chewing gum madly. After 3-4 hours (max) I started feeling really slow and sleepy. Naturally I then shot some more with a repeat of 1. above
3. Two really noticeable things were the extreme horniness (even more than the horniest experiences on good meth) and rise in body temperature to the point of pouring sweat
4. It gives you a real hunger to re-dose. Even though the experience is not euphoric and a bit ordinary there is a compulsion to keep hitting the bag again ever 3-4 hours (max)
5. Did give smoenthing of a headache and some body aches around kidneys and liver
6. The next couple of days the hunger was still there. I thought it was for meth but I guess it was really for this isopropylbenzylamine. The craving is identical.
76. Comedown not depressing in a psychological sense but more like total body exhaustion and lethargy lasting more than 48 hours
I have had some unusual "meth" experiences over the last few months which I attributed to also being on anti-psychotics or getting tolerant but now I know this stuff for what it is I am pretty sure I was getting it as varying percentages of cut in everything I did not source from DW. I got about 50 % of my gear from DW and about 50 % from several dealers in generally same area. Because I had great nights of chemsex on their stuff I overlooked the fact that I would burn through a gram in a night and sleep like a baby afterwards. There was definitely meth in each deal but plenty of this other garbage too. It's not that easy to tell the difference between the shards when buying. Fortunately, I have learned several ways to differentiate between this fake meth and real meth. DW sources still all providing real meth thankfully.
We live and learn.