What are some of the highest doses of clen people have run out there? Personally I've run it at 200mcg/day and I twitch like a child watching japan anime cartoons. A co-worker of mine ran it at over 500mcg/day for 2 weeks straight to get down to a weight class for fighting. I told him he was a moron and to have his cell phone with 9-1-1 handy. But he did end up loosing a ton of weight and says his body just doesn't respond to low doses of beta blockers so I wanted to know what other members have run in terms of high clen doeses.