12/11/2014 8:06PM

Los Alamitos tests reveal trace positives in Super Derby runners

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CYPRESS, Calif. - Los Alamitos announced Thursday that it has released the purse of the $972,100 Los Alamitos Super Derby for Quarter Horses, run on Nov. 22, despite trace-level positives in pre-race tests for the bronchodilators clenbuterol and albuterol among several the 10 finalists. Clenbuterol and albuterol both have muscle-building qualities in addition to helping aid breathing.