Five athletes tested positive for the stimulant bromantan and were disqualified by the IOC, but later reinstated after an appeal to the Court of Arbitration for Sport: swimmers Andrey Korneyev and Nina Zhivanevskaya , Greco-Roman wrestler Zafar Guliyev and sprinter Marina Trandenkova , all from Russia, and the Lithuanian track cyclist Rita Razmaitė . Dr. Vitaly Slionssarenko, physician to the Lithuanian cycling team and team coach Boris Vasilyev were expelled from the games.    The CAS overturned the IOC decision, because bromantan had only recently been added to the prohibited list,  and the athletes and officials were reprimanded.    The Russians had argued that bromantans wasn't a stimulant and thus not banned.  
Obviously this is quite a difficult issue, doping in general. I don’t think it can ever be eliminated or even significantly reduced. That being said, I still think we should try. In my opinion, we should continue to fight for that very unrealistic dream of “natural athletes”. I’d love to see what humans are really capable of, even though many would rather go back to an era of Blagoevs, Zlatevs, Suleymanoglus etc. And as for today, we should at least not give preferential treatments to anyone. Every time I hear a British/American low tier lifter whine about the “mighty, roided Russians” or shit like that my stomach turns. Like they’re fuckin clean. And people hate on the exceptional Russian lifters calin them out, while praising Xiaojun and Ilya, who are obiously doped af. It ain’t right.
Drugs can be added and removed from this list by WADA annually, although not all of the banned substances are explicitly named. Caroline Hatton, PhD , a sports anti-doping science consultant, told in a Mar. 12, 2010 email that "A key concept in prohibited lists is that they avoid being finite. Instead of listing all banned drugs one by one, they list entire drug classes and name drugs merely as examples. This is to keep users who took designer drugs from claiming that they didn't break the rules because the drugs they took weren't listed."