Nandrolone decanoate is an anabolic steroid used as an injection to treat kidney failure, inoperable breast cancer, severe osteoporosis, aplastic anaemia, suppression of white cells, and to prevent side effects in patients using corticosteroids long term. It is also used dangerously, and in an unapproved manner, by body builders and athletes.
Nandrolone must not be used in pregnancy, or breastfeeding, if suffering from prostate and testicular cancer, male breast cancer, heart failure, or liver and kidney disease. Use it with caution in children as growth suppression may occur, and in adults with heart disease, enlarged prostate gland and diabetes.
Common side effects include increased hairiness and decreased breast size in women, voice deepening in women, acne, frequent unwanted erections and infertility.
Unusual side effects may include anaemia, enlargement of the clitoris in women, cessation of menstrual periods, decrease in testicular size, impotence, breast enlargement in males, baldness in females, reduced libido, unusual bruising or bleeding, calcium deposits (lumps) in tissue and jaundice (yellow skin).
Nandrolone decanoate interacts with insulin, warfarin, hypoglycaemics (used for diabetes) and echinacea.
Although increasing muscle bulk, there is no evidence that this medication enhances athletic ability. Short term gains in muscle bulk when used inappropriately by body builders, may result in long term permanent body damage that may lead to early heart attacks, infertility, bone weakness, liver disease and premature death. Bottom line is – don’t use it except under strict medical supervision when indicated for specific diseases.