I did get some clenbutrx today as well. My wife wanted to try it, I took half dose (2cc) and within 10 seconds of swallowing teh stuff I had an energy surge. BIG TIME. Lasted about 2-3 hours, but the 1st 30 minutes were intense. Tasted NASTY but I washed it down with water. Its potent. I also sweated for a while too.