Nigbo, creatine is in no way a stimulant. Creatine super hydrates the cells and some folks gain lots of strength and size from simple creatine monohydrate. The size is an illusion, as it is all water, but the cell volumizing effects put your muscles in a better working environment, better able to lift heavy weight without injury. Thate is right, since creatine is a natural organic substance found in beef, I don't believe it would be possible to detect in a drug test. Your friend probably just gave them a list of all the supps he was using and not knowin a thing about supps or nutrition, they told him to steer clear of everything.