My housemate is a rheumatology registrar who regularly doses people up with triamcinolone - patients, not cyclists.
Interestingly, he says that looking at the way it works, he doesn't quite see how it can have the effect it is supposed to when abused in cyclists (fat stripping and weight loss without power loss).

Just an interesting counterpoint to what has previously been suggested (along the lines of 'it made me feel a million dollars' from Millar[?], Rasmussen and the like).