Together, testosterone and DHEA prevent the death of CNS nerve cells. This information suggest that there are beneficial systemic effects in maintaining blood levels of androgens similarly to the benefits of maintaining normal thyroid hormone levels. The prescription and use of steroids is legal in the United States. The issue is clouded by the Anabolic Steroid Control Act of 1990, which criminalizes sale and possession of any anabolic steroid intended for non-medical use. The best protection for a physician is to carefully document symptoms and test results and not to over prescribe any replacement therapy.
Half are counterfeit.
Most said to come from Mexico. Labels often claim illegal importation despite local manufacture. Purity is questionable and users sharing needles run risk of hepatitis, HIV infection and subsequent AIDS, abscesses, cellulitis and death. Potential steroid users are further advised that buying a known counterfeit steroid is a felony, as is buying a non-FDA approved steroid. Testosterone has been found to inhibit clot formation by decreasing fibrinogen and hardening of the arteries by increasing HDL and decreasing serum triglycerides.