Nandrolone D or Decadurabolin is an injectable steroid produced by Balkan Pharmaceuticals that is based on the active substance Nandrolone Decanoate. In other words, it is the Balkan version of Decadurabolin. Nandrolone Decanoate is found on the market in a variety of names, but is simply known as Deca. It can be used in multiple cycles without side effects as long as a minimum dosage is maintained. Although Nandrolone Decanoate is used in medicine to treat various ailments, this substance is especially known among bodybuilders due to its positive effects on increasing muscle mass and strength. Steroids containing Nandrolone Decanoate are among the best-selling steroids in the world. After a small study, it was concluded that 1 in 3 bodybuilders use nandrolone decanoate products in their cycles. Nandrolone D is a good variant of the well-known Deca. It comes in 1 ml ampoules with a concentration of 200 mg per milliliter. Recommended dose: 400-600 mg per week.