I tried "Charge" a few weeks ago, and although the first few lines were great, and it left me feeling exactly like I was on cocaine, I ended up doing "too much". After one longer line, I immediately vomited. I had only done about two large lines altogether, not very much for me in relation to coke. After throwing up, I was higher than I had ever been on cocaine. They are very similar substances, but the vomiting was unexpected, as I have only thrown up once on cocaine and that was after doing about half a gram without stopping.