Deca Durabolin is used for the treatment of osteoporosis in postmenopausal women to manage bones from weakening. This medicine acts by strengthening weak and brittle bones. This injection will be given to you in the hospital or clinic by a doctor or nurse. You should avoid self-injecting. Deca Durabolin 25 MG Injection is an anabolic steroid used to treat anaemia and osteoporosis. It can cause side effects like acne, swelling, and virilisation. It is not safe for pregnant, breastfeeding, or allergic people. Deca Durabolin contains the main active ingredient, Nandrolone, which has the effects of increasing calcium metabolism, stimulating bone marrow to produce red blood cells, and having minimal androgenic effects. Learn about the anabolic steroid Deca- Durabolin (nandrolone), including its benefits, usage, risks, side effects, and safer available options.