7 Pa. Code § 403.3 – Treatment restrictions.

(a) Only licensed owners or trainers shall be permitted to authorize veterinary medical treatment of horses under the veterinarian’s care, custody and control at a racetrack, licensed facility or other location under the jurisdiction of the commission.
(b) Except as otherwise provided by this subsection, no person other than a veterinarian licensed to practice veterinary medicine in this jurisdiction and licensed by the Commission may administer a prescription or controlled medication, drug, chemical or other substance (including any medication, drug, chemical or other substance by injection) to a horse at any racetrack, facility or other location under the jurisdiction of the Commission.
(c) This subsection does not apply to the administration of the following substances except in approved quantitative levels, if any, present in post-race samples or as they may interfere with post-race testing:
1. (1) A recognized non-injectable nutritional supplement or other substance approved by the official veterinarian;
2. (2) A non-injectable substance on the direction or by prescription of a licensed veterinarian; or
3. (3) A non-injectable non-prescription medication or substance.
(d) No person, other than a veterinarian licensed by the Commission, shall use, transport or be in the care, control, custody or constructive possession of a hypodermic needle, syringe capable of accepting a needle or injectable substances of any kind on the licensed racetrack or grounds. The discovery of a hypodermic needle, syringe or injectable substance in shared locations such as tack rooms, lockers, stalls or stables shall be sufficient grounds for imposition of penalty on all licensees who use or control the previously listed locations. At all licensed racetracks or other locations under the jurisdiction of the Commission, veterinarians may use only a one-time (one-use) disposable syringe and needle and shall properly dispose of both into an appropriate container provided by the licensed racing entity or in a manner approved by the Commission.
1. (1) Except that, if a person has a medical condition which makes it necessary to have a syringe at any location under the jurisdiction of the Commission, that person must furnish a letter from a licensed physician explaining the need for the person to possess a syringe and must comply with any conditions and restrictions set by the Judges or Stewards or the Commission.
(e) Practicing veterinarians shall not have contact with an entered horse within 24 hours before the scheduled post time of the race in which the horse is scheduled to compete except for the administration of Furosemide under the guidelines set forth in § 403.14 (relating to Furosemide (Lasix—Thoroughbred)) unless approved by the Commission Veterinarian. Any unauthorized contact may result in the horse being scratched from the race in which it was scheduled to compete and may result in further disciplinary action by the Stewards.