The 300 in this product's name is the strength: 300 mg of nandrolone decanoate in every millilitre, ten millilitres to the vial, from Dragon Pharma's injectable range.
Nandrolone is testosterone with the nineteenth carbon removed, a small edit that shifts the balance towards anabolic rather than androgenic activity and introduces progestogenic behaviour testosterone does not have. The decanoate attached to it is a long ester, so the hormone enters circulation slowly and leaves it slowly, placing the compound firmly among the slow injectables rather than the fast-acting ones.
