Nandrolone (/ËnaendrÉloÊn/ , ËnÃ¦ndrÉloÊn-19) nortestosterone is an anabolic. Steroid nandrolone is most commonly sold commercially as its decanoate (Ester-Deca, durabolin, eubolin) retabolil and less commonly as a phenylpropionate (Ester, durabolin). fenobolinandrolone decanoate is used in the treatment of osteoporosis in postmenopausal women (though now not recommended) at a dose of 50 mg every three weeks.