Download Puerto Rico Medication Regulations
Review the official rules governing permitted substances, thresholds, and withdrawal times in Puerto Rico racing.
Source: Gaming Commission
Source: Gaming Commission
Medication Policy at Camarero vs. Industry Standards
Intro
Medication policy is not a technical detail. It shapes what is visible, what is masked, and when a horse is allowed to race. When thresholds are higher, withdrawal times are shorter, or multiple drugs are permitted together, underlying injury can be harder to detect.The euthanasia data at Camarero should be viewed in that context. It reflects a system where medication rules, oversight, and day-to-day decision-making intersect. To understand the outcomes, you have to examine the policies that define what is allowed and what may go unnoticed.
Puerto Rico Regulations
Puerto Rico’s medication rules establish what substances are permitted, the limits allowed, and how close to race day they can be administered. These regulations set the baseline for how horses are managed leading up to competition.Their impact depends not only on what is written, but how closely those standards align with broader industry benchmarks and how consistently they are applied.
ARCI Model Rules (Industry Benchmark)
The ARCI model rules provide a widely recognized benchmark for medication control in U.S. racing. They are designed to standardize thresholds, withdrawal times, and drug classifications with the goal of protecting horse welfare and maintaining competitive integrity.Using ARCI as a reference point allows for a clear evaluation of how other jurisdictions compare to established best practices.
Policy Comparison (PR vs. ARCI)
The comparison highlights material differences in allowable drug levels, withdrawal periods, and the use of multiple medications. These are not minor variations. They influence how pain is managed, how recovery is handled, and how risk accumulates over time.Reviewing these differences provides necessary context for assessing whether current policies align with accepted standards or create conditions where preventable outcomes are more likely.
According to a statement the Puerto Rico Gaming Commission provided to the Paulick Report, the medication rules for Thoroughbred racing are currently under review: “The review is expected to be completed by the third quarter of 2026. Puerto Rico has consistently followed the medication guidelines established by the Association of Racing Commissioners International (ARCI) in the United States. As part of the current review process, a work plan will be developed in coordination with private and regulatory veterinarians to update the guidelines and ensure continued alignment with standards followed throughout the United States.”
Download ARCI Model Medication Rules
Access the industry benchmark for medication thresholds, withdrawal guidelines, and standardized racing protocols.
Source
Download the Drug Policy Comparison
A detailed, side-by-side analysis of ARCI and Puerto Rico medication rules, including direct citations and key discrepancies.
How Medication Policy Aligns with Breakdown and Death
Pain-masking drugs align directly with breakdown injuries
The euthanasia data is dominated by fractures, suspensory failures, and severe arthritis, the exact conditions where anti-inflammatories and corticosteroids can suppress warning signs.
Higher allowable thresholds increase the risk of undetected injury
Puerto Rico permits significantly higher levels of key drugs (e.g., dexamethasone, phenylbutazone), allowing more medication in a horse’s system without triggering a violation.
Shorter withdrawal periods allow racing closer to active drug effect
Reduced stand-down times mean horses may compete while drugs are still influencing pain and inflammation responses.
Permitted drug stacking compounds masking effects
Puerto Rico explicitly allows combinations of corticosteroids and NSAIDs, increasing the likelihood that multiple layers of pain suppression are active at once.
Joint-focused steroid rules correlate with joint-related catastrophic injuries
More permissive intra-articular corticosteroid use aligns with the high frequency of fetlock, knee, and sesamoid breakdowns seen in the dataset.
Race-day and near-race deaths align with masking windows
Many horses were euthanized the same day or shortly after racing, consistent with injuries occurring under active performance conditions where underlying issues may not have been fully visible.