why shouldnt i use anavar at 20 ??

[jcp2]

Courtesy of [sigh] Wikipedia:
"John Bosley Ziegler, John Ziegler, Montana Jack, (circa 1920 - 1983) was an American physician who originally developed the anabolic steroid Methandrostenolone (Dianabol, DBOL) which was released in the USA in 1958 by Ciba.[1][2] He pioneered its athletic use as an aid to muscle growth by bodybuilders, administering it to U.S. weightlifting champion Bill March of the York Barbell club in 1959 when he was the physician to the U.S. Weightlifting team[3].
Working at CIBA allowed Ziegler access to books and records from Germany where experiments with testosterone had been carried out by the Nazis, and which had been confiscated by the United States after the war.[2][5]

In October 1954, Ziegler, went to Vienna with the American weightlifting team. There he met a Russian physicist who, over "a few drinks", repeatedly asked "What are you giving your boys?" When Ziegler returned the question, the Russian said that his own athletes were being given testosterone. Returning to America, Ziegler tried weak doses of testosterone on himself, on the American trainer Bob Hoffman and on three lifters, John Grimek, Jim Park and Yaz Kuzahara. All gained more weight and strength than any training programme would produce but there were side-effects. [6] Ziegler sought a drug without after-effects and hit on an anabolic steroid, methandrostenolone, (Dianabol, DBOL), made in the U.S. in 1958 by Ciba.[1][2]

Ziegler gave Dianabol to the entire U.S. Olympic weightlifting team in Rome in 1960, but they still lost to the Soviets.[5] "

But that does not tell you what medical condition it was created to treat.

[Bonaparte]

But that does not tell you what medical condition it was created to treat.

Nothing in particular, I believe (so general androgen replacement). I recall reading that it was just designed as a less androgenic and more anabolic alternative to testosterone.

[jcp2]

Nothing in particular, I believe (so general androgen replacement). I recall reading that it was just designed as a less androgenic and more anabolic alternative to testosterone.

Every steroid that has been marketed for humans was created to treat something.

[Bonaparte]

Every steroid that has been marketed for humans was created to treat something.

No, it was eventually marketed to treat medical conditions to appease the FDA, but orginally invented by a desire to create an androgen supperior to testosterone for athletes. And many drugs are created by accident or while trying to make something completely different, so you can't say that every drug is originally created for a purpose (it may just find a purpose later on).

From the profile on this site:
"Russian athletes in the 1953 World Championships as well as the Olympic games then used testosterone with great success. After that, John Zeigler, who was a doctor working with the US Weightlifting Team, began a cooperative project with Ciba to develop an equalizer for US atheletes. Flash forward to 1956 and enter Dianabol ; the original trade name for Ciba´s Methandrostenolone... but called "Dbol" by athletes. The original package insert said that 10mgs/day was enough to provide full androgen replacement for a man and Dr.Zeigler recommended that athletes take 5-10mgs/day."

And another site:
"As early as 1965, Dianabol was already starting to fall under scrutiny of the U.S. Food and Drug Administration. That year the FDA requested Ciba clarify Dianabol's medical uses, which were then stated to include helping patients in debilitated states and those with weakened bones. In 1970, the FDA accepted that Dianabol was "Probably Effective" in treating post-menopausal osteoporosis and pituitary deficient dwarfism. These changes were reflected in the drug's prescribing recommendations during the 1970's, and Ciba was allowed to continue selling and studying the agent. Ciba eventually lost patent protection, however, and companies like Parr. Barr, Bolar, and Rugby were soon cutting deeply into their market with their own generic version of the drug.

By the early-80's the FDA had withdrawn its "Probably Effective" position on the pituitary-deficient dwarfism, and continued to press Ciba for more data. Sufficient clarification never came, and in 1983 Ciba officially withdrew Dianabol from the u.s. market.467 Perhaps financial disinterest had a hand in their abandoned push to keep the drug approved. The FDA pulled all generic forms of methandrostenolone from the u.s. market in 1985, a time when most Western nations were also eliminating the drug, finding its existence to be justified mainly by sports doping. Methandrostenolone is still produced today, but typically in nations with loose prescription drug regulations, and by companies that still prefer to cater to an underground athletic market.