Oxandrolone is an anabolic steroid that was released in the US under the trademark Anavar in 1964. Oxandrolone is widely used due to a small androgenic effect, and moderate anabolic action. Although oxandrolone is an alpha-17-alkylated steroid, it has low toxicity on the liver.Initially, oxandrolone was developed to treat HIV-infected patients, those with osteoporosis or  osteochondrosis, and to accelerate recovery from burns. Soon it began to be actively used in bodybuilding. Oxandrolone has been very popular since that time, there was even a period when it was difficult for athletes to find this steroid because of the great demand.