Androgenic-anabolic steroids (AAS) have been misused by athletes at the Olympic Games, both before and after they were prohibited in sport in 1974. Systematic doping with AAS occurred in the German Democratic Republic (GDR) from 1965 to 1989 which assisted that country to win many medals at Olympic Games, especially in female events. Currently, AAS are the most frequent category of prohibited substances detected in the urine of athletes both globally and at the last two Summer Olympic Games. Scientific confirmation that AAS are effective in enhancing sports performance was difficult because ethical approval was difficult for research involving male subjects taking massive doses of androgens as some athletes and bodybuilders did. Methods to detect AAS have evolved gradually over the past three decades and currently, despite an impressive array of sophisticated analytical equipment and methods, anti-doping authorities and analytical scientists continue to face challenges as have occurred from the use by athletes of designer AAS during the past few years. The future development and use of selective androgen receptor modulators (SARMs) can be anticipated to pose problems in the years ahead. Endocrinologists should be aware that on occasions, replacement testosterone (T) therapy may be authorized in sport as a therapeutic use exemption (TUE) and these circumstances are discussed.

Keywords: doping, androgenic-anabolic steroids, history, Olympic Games, detection, designer steroids, therapeutic use exemption

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