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.  
As a beginner, you may ask yourself what in fact is a steroid cycle. In short, it refers to a period of time in which an individual use anabolic androgenic steroids (AAS) for improving physical appearance, whether this is building up muscle mass, increasing strength or burning fat. Each cycle lasts between 4 weeks (in the case of oral steroid cycles) and up to 14 weeks (injectable steroid plus an oral). But there are other factors that influence a cycle length too, such as user experience - beginner, intermediate or advanced user - and goals that are wanted to be reached.