An open race is any race that is not limited to horses foaled in a specific state, sired by stallions standing in a specific state or horses sold at a certain auction. Thistledown Racing Club Inc. Treatment may occur in a horse's own stall up to 4 hours prior to post. A permitted dosage ranging from 100 mg to 250 mg must be administered through IV injection. Treated same as older horses.
Rules are subject to change.
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