Is this really fair? (Saint's Thomas suspended for 'roids)

[Defensewins]

There must be something else that is not in this story, like there is another medication that works for these symptoms that does not have a banned steriod? Maybe? I am guessing.
Then again the NFL is really slow to correct rules that have obvious problems. They do not like to admit when they are wrong. Like this crazy roughing the passer rule. It goes too far and it is wrong. However it will take a long time to correct even though most people hate it except the QB's, GM's and certain coaches. I think the teams that have been F-ed by this unfair rule now want it gone.

This steriod exception rule might fall in the same catagory, hard to change due to politics involved.