(a) No androgenic-anabolic steroids shall be permitted in test samples collected from racing horses except as permitted on the written list of therapeutic drugs maintained under §319.3 of this chapter (relating to Medication Restricted).
(b) Any other anabolic steroids are prohibited in racing horses.
(c) The sex of the horse must be identified to the laboratory on all pre-race and post-race samples designated for AAS testing.
(d) If an anabolic steroid has been administered to a horse in order to assist in its recovery from illness or injury, that horse may be placed on the Veterinarian's List in order to monitor the concentration of the drug or metabolite in urine or blood. After the concentration has fallen below the designated threshold for the administrated androgenic-anabolic steroids, the horse is eligible to be removed from the list.

Source Note: The provisions of this §319.364 adopted to be effective March 22, 2009, 34 TexReg 1840; amended to be effective September 28, 2014, 39 TexReg 7575