“Prohibited drug substance” is any drug substance, medication, or chemical, whether natural or synthetic, or a metabolite or analogue thereof, foreign to the horse, whose use is not expressly authorized by the board. This includes, but is not limited to, any substance determined to be a stimulant, depressant, local anesthetic, or narcotic, or any drug, regardless of how harmless or innocuous it might otherwise be, which could interfere with the detection of any prohibited drug. “Prohibited drug substance” includes any substance not approved for use in the United States, including, but not limited to, any drug or substance available in a country outside the United States, any controlled substance listed in Part 1308 of Title 21 of the Code of Federal Regulations, and any substance the approval of which has been withdrawn.
19400
19401
19402
19403
19403.5
19404
19405
19406
19407
19407.5
19407.6
19408
19408.1
19408.2
19408.3
19409
19409.5
19410
19410.5
19410.7
19410.8
19411
19411.1
19412
19413
19413.1
19413.2
19413.4
19413.5
19414
19414.5
19415.5
19415.8
19416
19416.5
19416.6
19416.7
19417
19417.5
19417.6
19417.7
19418
19418.1
19418.2
19418.3
19419.9
19401
19402
19403
19403.5
19404
19405
19406
19407
19407.5
19407.6
19408
19408.1
19408.2
19408.3
19409
19409.5
19410
19410.5
19410.7
19410.8
19411
19411.1
19412
19413
19413.1
19413.2
19413.4
19413.5
19414
19414.5
19415.5
19415.8
19416
19416.5
19416.6
19416.7
19417
19417.5
19417.6
19417.7
19418
19418.1
19418.2
19418.3
19419.9