The detection of anabolic steroids is difficult despite the most modern medical technology. Due to metabolic processes, anabolic steroids can only be detected in urine days to weeks after ingestion, depending on the type of medication. For this reason doping tests are not only carried out immediately after the competition, but also as unannounced training controls.
Oral intakes are detectable 3-4 weeks after treatment. This gap before the competition was bridged by the administration of pure testosterone.