Deca-Durabolin is the Organon brand name for the injectable steroid nandrolone decanoate. This compound came around early in the wave of commercial steroid development, first being made available as a prescription medication in 1962. Deca 's large popularity can be attributed to its numerous possible applications and, for its mostly positive results. It 's main characteristic is clearly defined on the package insert by Organon GmbH Company: "The distinct anabolic effect of nandrolone decanoate is mirrorred in the positive nitrogen balance." Nitrogen, in bonded form. is part of protein. Deca Durabolin causes the muscle cell to store more nitrogen than it releases so that a positive nitrogen balance is achieved. A positive nitrogen balance is synonymous with muscle growth since the muscle cell, in this phase, assimilates (accumulates) a larger amount of protein than usual. The same manufacturer, however, points out on the package insert that a positive nitrogen balance and the protein building effect that accompany it will occur only if enough calories and proteins are supplied. One should know this since, otherwise, satisfying results with Deca Durabolin cannot be obtained. The highly anabolic effect of Deca Durabolin is linked to a moderately androgenic component, so that a good gain in muscle mass and strength is obtained. At the same time, most athletes notice considerable water retention which, no doubt, is not as distinct as that with injectable testosterones but