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US RMTC Urges 60% Cut To "Bute" Threshold

Monday, 19th April 2010

The Board of Directors of the US Racing Medication & Testing Consortium recommended lowering the "allowable threshold of phenylbutazone from 5-micro-grams to 2-micrograms-per-milliliter of plasma or serum". Bute is 1 of 3 non-steroidal anti-inflammatory drugs (NSAIDs) permitted at least 24 hours before a US race (the other 2 are flunixin & ketoprofen). RMTC Scientific Advisory Committee chairman & California Horse Racing Board equine medical director Dr Rick Arthur explained: "This action was taken in response to concerns expressed by the regulatory veterinary community regarding the effects of NSAID administration on pre-race examinations. The committee felt the regulatory veterinarians' concerns that NSAID levels may compromise pre-race examinations were justified. This adjustment in permitted phenylbutazone level is measured & appropriate."

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