Depends on the timing. Bans, and annulling of results, start with the offense. See Ramzi vs. Kiprop, or of course Armstrong. The injection stuff was documented to have been early 2012; depending on the punishment, that could cost Rupp his silver. Early 2016, he was caught as likely doper by the IAAF (blood doping). If USADA found evidence (doubtful), that would surely cost him his bronze medal.
Come on, IOC doesn't care. wrote:
I hope some Olympic Medals will be taken away.
I'm not saying they are guilty or not. I don't know. No idea.
But taking away medals for convicted dopers? Kiprop still has his and Kornelia Ender still has her medals too.