Clenbuterol was initially formulated as an asthma drug, but in 1991, it was found out by the U.S. Food Safety and Inspection Service that this steroid-like chemical was being fed to domestic animals, to make them acquire more muscles and less fat. Ever since, this drug has been excessively used in bodybuilding and weight-loss programs due to its energy increasing and rapid fat-burning properties. It has several detrimental aftereffects like anxiety, excessive sweating, rise in body temperature, shivering, headache.