Someone proposed this in another thread here in the UG or elsewhere so I'm not taking credit for it. I just can't find the thread for me to bump.
If someone intentionally delivers a low blow or intentionally commits any other illegal act that incapacitates his opponent, he'd get DQ'd. Getting busted for PEDs should lead to the same result. Don't change his win to a "no contest." Change it to a DQ loss for the PED user if he won and a win for his opponent.
at least take away Roids Gracie's "WIN" over Saku
Just imagine Bispring 's record 
I've talked about this before.
The losers definitively should NOT have a loss on their record if the opponent is caught cheating imo. 