Seriously, does it really matter. With the approval of TUEs supported by the industry and their medical staff almost any drug can be approved and often are for training. Clean up for a few weeks before any race and your home free. Anyone that believes that these guys compete at this level on aspirin is delusional. This does not make all of them druggies, it simply makes them human. Still the greatest show on earth, love bike racing!!! One more thing, to suggest that a rider is using unapproved drugs cheapens the sport and is strictly hear say and mean spirited bull ****.