Oxandroloneis an anabolic steroid that is created in a synthetic way and is used by beginners and experienced athletes to form a qualitative, relief structure of muscles. The active substance of the drug is a synthetic steroid Oxandrolone, created in the 60’s for medical purposes (as an immunostimulator for HIV patients, anemia). Initially, this anabolic was produced under the trade name Oxandrolone, but since the 80s of the last century, many analogues have been produced in the market of sports pharmacology.