Which I think is even more heinous considering they've gone through and are still going through a scandal:

http://thinksteroids.com/news/therapeutic-use-exemptions-for-performance-enhancing-drugs/

"In the 2006 Tour de France, it was reported that 60 percent of the 105 riders subject to testing had therapuetic use exemptions. This meant that even if they tested positive for a banned substance, they were not penalized. Pat McQuaid, of the International Cycling Union (UCI) was quoted as saying:

We follow the WADA rules and the WADA rules allow guys to have (the certificates) for certain things… It’s not particular to cycling.
TUEs for anabolic steroids, beta-2 adrenergic agonists (e.g. clenbuterol, salbutamol), and corticosteroids were granted by the UCI.

Now just imagine how problematic the TUE loophole could be in Major League Baseball whose drug testing procedures are much more lenient that those of WADA (World Anti-Doping Association).

According to the Mitchell Report, Rob Manfred from the Commissioner’s Office maintained that no therapeutic use exemptions were issued to MLB players for growth hormone (GH). (If use of GH is not detectable, it is clearly not necessary for a doped athlete to obtain a TUE.)

But when Senator Mitchell’s office asked for the total number of therapeutic use exemptions granted to players, the Commissioner’s Office and Player’s Association refused to answer:

I asked for the number of therapeutic use exemptions granted each year for performance enhancing substances (without identifying the players involved) because therapeutic use exemptions have been a significant loophole in some drug testing programs. The Commissioner’s Office and the Players Association declined to provide that information on the ground that it is considered confidential under the joint program."
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