Even if there was a way to appeal it doesnt ' accomplish much short term . They ' d take a committee and go through the list each quarter , biannual etc and review it and then maybe a year or two down the line it ' s taken off the list . But in the meantime Machida is still suspended . There are lots of issues with this . First you get the troll appeals of take xyz anabolic steroid off the list and they ' d have review it . It ' s a waste of time in this sense . But you can ' t arbitrarily not look at one substance while looking at a whole list of others . Second , what are they going to look at on an appeal situation that they didn ' t look at when they put it on the list to begin with ? To further complicate that organizations like these hate admitting they were wrong . So I doubt you ' d see them say you know what , we were wrong wtih 7 keto . It is not a PED , we ' ll take it off .