In 1962, the Organon company introduced Deca Durabolin to the market. They attached the large Decanoate ester to the steroidal hormone Nandrolone, which was developed two years earlier by removing a carbon atom at the 19th position from testosterone. Deca-Durabolin is a very popular steroid among performance enhancing athletes. Nandrolone is good for any athlete who wants to increase the amount of steroids used without increasing the side effects. Another common use for Deca is for medical purposes. This steroid is known to be the most beneficial in medical practice. The anabolic activity of Deca Durabolin is 1.5 times higher than testosterone’s. The androgenic activity of Deca is 3.5 times lower than testosterone’s.