I've tried 2c-b twice in my life. The first time I took it with mdma and had an amazing time. The second time I took it I broke out in hives, swelled up and was miserable for about 12 hours. That was 17 years ago and the last time I took any drug of that nature. I think things like this are why drugs should not be illegal. Getting a known quantity of a known entity is always safer than black market pills stuffed and cut with who knows what.