Although you have to [censored] all over your hand to do it:
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Doping experts developing test to detect powder that destroys EPO in
urine
The Associated Press
Published: October 1, 2006
LAUSANNE, Switzerland Anti-doping laboratories are working on a test
to detect a powder used to destroy traces of the performance-enhancer
EPO in urine samples.
Martial Saugy, the head of the Swiss anti-doping laboratory, said
there have been suspicious tests over the last year in which no traces
of EPO — or Erythropoietin — were found in athlete's urine, not even
natural EPO produced by the body's kidney cells.
Researches suspect cheats are using a substance called protease —
sometimes used in stain removers — to wipe out all traces of EPO in
their urine.. . .
.. . .Cheaters could slip the powder into a urine sample by putting a
hand in their pocket where some protease is stashed, then urinating on
their fingers. Very little powder is needed to break down proteins —
including EPO — in urine in the space of a few minutes.
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Read it at
http://www.iht.com/articles/ap/2006/10/01/sports/EU_SPT_ATH_IAAF_Doping_EPO_Destroyer.php
J. Spaceman