Deca-Durabolin 50 Injection is a medication used to treat osteoporosis in post-menopausal women, strengthening thin, brittle bones. It is typically given by a healthcare professional and should be taken regularly. Common side effects include edema, fluid retention, nausea, acne, and breast enlargement. Patients with liver or kidney problems, as well as pregnant or breastfeeding mothers, should consult their doctors before using this medication.