| 11. | In 2011, he was provisionally suspended after testing positive for a potential drug masking agent.
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| 12. | During the night they've obviously given these to the kids as a masking agent ."
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| 13. | If it finds no banned drugs or masking agents, the B sample is thrown away.
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| 14. | As such, epitestosterone is banned by many sporting authorities as a masking agent for testosterone.
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| 15. | Diuretics are banned because they can be used as masking agents to avoid detection of steroids.
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| 16. | In 2006 Castillo was found guilty of using furosemide, a banned diuretic and so-called masking agent.
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| 17. | But the IRB outlaws probenecid because it can be used as a masking agent for steroids.
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| 18. | The labs associated with the NFL have also done a lot of work on masking agents.
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| 19. | Five positive tests for the stimulant and masking agent bromantan were overturned by an arbitration court.
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| 20. | Diuretics are considered masking agents for performance-enhancing drugs.
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