205 CMR 4.50
Veterinary Practices
(1) Veterinarians under the Authority of the Official Veterinarian. Veterinarians licensed by
the Commission and practicing at any location under the jurisdiction of the Commission are
under the authority of the official veterinarian and the Stewards. The official veterinarian shall
recommend to the Stewards or the Commission the discipline that may be imposed upon a
veterinarian who violates the rules.
(2) Appropriate Role of Veterinarians. The following limitations apply to drug treatments of
horses that are engaged in activities, including training, related to competing in pari-mutuel
racing in the jurisdiction:
(a) No drug may be administered except in the context of a valid veterinarian-client-patient
relationship between an attending veterinarian, the horse owner (who may be represented by
the trainer or other agent) and the horse. The owner is not required by 205 CMR 4.50(2) to
follow the veterinarian's instructions, but no drug may be administered without a veterinarian
having examined the horse and provided the treatment recommendation. Such relationship
requires the following:
1. The veterinarian, with the consent of the owner, has accepted responsibility for
making medical judgments about the health of the horse;
2. The veterinarian has sufficient knowledge of the horse to make a preliminary
diagnosis of the medical condition of the horse;
3. The veterinarian has performed an examination of the horse and is acquainted with
the keeping and care of the horse;
4. The veterinarian is available to evaluate and oversee treatment outcomes or has made
appropriate arrangements for continuing care and treatment;
5. The relationship is maintained by veterinary visits as needed; and
6. The veterinary judgments of the veterinarian are independent and are not dictated by
the trainer or owner of the horse.
(b) No prescription drug may be administered except as prescribed by an attending
veterinarian.
(c) The trainer and veterinarian are both responsible to ensure compliance with these
limitations on drug treatments of horses, except the medical judgment to recommend a drug
treatment or to prescribe a drug is the responsibility of the veterinarian and the decision to
proceed with a drug treatment that has been so recommended is the responsibility of the
horse owner (who may be represented by the trainer or other agent).
(3) Treatment Restrictions.
(a) Only licensed trainers, licensed owners or their designees shall be permitted to authorize
veterinary medical treatment of horses under their care, custody and control at locations
under the jurisdiction of the Commission.
(b) Except as otherwise provided by 205 CMR 4.50(3), 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
location under the jurisdiction of the Commission.
(c) 205 CMR 4.50(3)(c) 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. A recognized non-injectable nutritional supplement or other substance approved by
the official veterinarian;
2. A non-injectable substance on the direction or by prescription of a licensed
veterinarian; or
3. A non-injectable non-prescription medication or substance.
(d) No person shall possess a hypodermic needle, syringe capable of accepting a needle or
injectable of any kind on association grounds, unless otherwise approved by the Commission.
At any location under the jurisdiction of the Commission, veterinarians may use only a
one-time disposable syringe and needle, and shall dispose of both in a manner approved by
the Commission. 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 may request
permission of the Stewards and/or the Commission in writing, furnish a letter from a licensed
physician explaining why it is necessary for the person to possess a syringe, and must comply
with any conditions and restrictions set by the Stewards and/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 205 CMR 4.52(6)
unless approved by the official 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.
(f) Any horse entered for racing must be present on the grounds prior to the scheduled
furosemide administration time or one hour prior to first post time whichever is earlier.
(4) Veterinarians' Reports.
(a) Every veterinarian who treats a racehorse at any location under the jurisdiction of the
Commission shall, in writing on the medication report form prescribed by the Commission,
report to the official veterinarian or other Commission designee at the racetrack where the
horse is entered to run or as otherwise specified by the Commission, the name of the horse
treated, any medication, drug, substance or procedure administered or prescribed, the name
of the trainer of the horse, the date and time of treatment and any other information requested
by the official veterinarian.
(b) The medication report form shall be signed by the practicing veterinarian.
(c) The medication report form must be filed by the treating veterinarian not later than post
time of the race for which the horse is entered. Any such report is confidential and its
content shall not be disclosed except in the course of an investigation of a possible violation
of the Commission's regulations or in a proceeding before the Stewards or the Commission,
or to the trainer or owner of record at the time of treatment.
(d) A timely and accurate filing of a medication report form that is consistent with the
analytical results of a positive test may be used as a mitigating factor in determining the
nature and extent, if any, of a rules violation.