In February 2017, American triathlete Beth Gerdes was given a 2-year suspension for presence of ostarine, and American triathlete Lauren Barnett was given a 6-month suspension for the presence of Ostarine. Both triathletes claimed contamination from salt tablet supplements. Lauren Barnett was able to provide tablets and sealed bottle tablets which both tested positive for contamination, thus only the 6-month suspension. The 2-year suspension still stands for Beth Gerdes who provided tablets for testing, but tests showed only low levels of ostarine not high enough to confirm the finding. 
Oxandrolone can be synthesized from dehydroepiandrosterone.
Advantages of the chemical composition of the drug: given a large increase in strength as not aromatize this steroid (not converted to estrogen). Also, if you need to get rid of fat, this product is good in combination with a diet, but also by loss of appetite, and will not eat much. Upon receiving this steroid has no side effects such as high blood pressure (because no water accumulates). One of the main advantages of this steroid have any effect on own testosterone production in the body!
By oxandrolone least itself does not provide a large gain in only gains weight and strength (good enough, because even weightlifters and powerlifters is used), sometimes stomach upset occurs.