Her portrayal of other drugs has been more overdramatic than realistic IMO. I think that if dopping appears it would be used more for drama/corruption rather than going for a more realistic approach.Steroids shrinking your balls is legit, as well as roid rage. Jeremy taking one just to win the tourney could be interesting, but EK will need to nail how steroids affect you physically and mentally.
Would be funny if Ian is still be able to kick juiced-up Jeremy's ass while being all natty, though I don't know if the tourney allows same gym members fighting.
It seems that, at least the first part of a tournament wouldn't allow same gym members figthing, but in the finals part I think there could be. But the thing going against a Ian vs Jeremy fight is the weight difference between them.