Well boyz and girls i can tell you first hand what happens if you inject into a vein. Tonight I was going to inject 1cc B-Complex into my delts. When I aspirated i saw the usual bubbles. ( Ofcourse this **** is dark red so i did not see the blood. I injected the vitamin which was followed by a sharp pain. Seconds later I started to get warm and tingly and later dizzy. Next thing I know I woke up to the sound of my GF shaking me and freaking out. I had fell in the bathroom, ****ed up my knee and shoulder and I was sweating like whore in church. ( she heard a couple of big bangs and came to the room) Thank god it was only vitamins. I hope there wont be other sides. Its ****ing scary. :spudniknu