80-160 mcgs per day, divided throughout the day following the piramid scheme. (Start with 20mcg/day and gradually increase.)
As of fall, 2006, Clenbuterol is not an ingredient of any therapeutic drug approved by the U.S. Food and Drug Administration, but is still used as an unproven slimming aid, and is now banned for IOC-tested athletes.
Jason Grimsley, former Major League baseball pitcher, admitted to using this drug.
Former Major League Baseball first Baseman David Segui has admitted to ordering the substance.