The following drugs are recognized as substances that unavoidably become part of the food supply or environment of the horse, or are recognized as substances of human use and addiction and that could be found in the horse due to its close association with humans:
Laboratory reports of caffeine in a concentration greater than or equal to 100 ng/ml in serum or plasma shall be treated as a Class 2 drug, as defined in the Association of Racing Commissioners International Uniform Classification Guidelines for Foreign Substances (incorporated by reference in Section 603.60(a)(3) ).
Laboratory reports of theobromine in a concentration greater than or equal to 2 mcg/ml in urine or 0.3 mcg/ml in serum or plasma shall be treated as a Class 4 drug, as defined in the Association of Racing Commissioners International Uniform Classification Guidelines for Foreign Substances (incorporated by reference in Section 603.60(a)(3) ).
Ill. Admin. Code tit. 11, § 603.75
Amended at 37 Ill. Reg. 4993, effective April 1, 2013