Screening Limits- Therapeutic Substances

10 April 2024
Logo

 

Like most other international racing jurisdictions, HRA has in place formal screening limits for certain therapeutic substances.  The therapeutic substances assigned screening limits are some commonly used equine medications representing a range of therapeutic classes, including nonsteroidal anti-inflammatory drugs, corticosteroids, local anaesthetics and tranquillisers.

The screening limit is the concentration of a particular therapeutic substance (or its metabolite) in urine or plasma above which the racing laboratory will call the sample positive.

Each screening limit has been derived from previous administration studies involving horses and these limits are harmonised detection limits agreed upon following input by international veterinary consensus.

Two items have recently been amended/added to the International Screening Limits for Therapeutic Substances as referred to in the Australian Harness Racing Rules (AHRR’s).

The two items are:

  1. Screening Limits for the purpose of AHRR 188B – Dexamethasone
  • 0.02 ng/mL in plasma
  1. Screening Limits for the purpose of AHRR 188B – Procaine
  • in plasma at 0.02 ng/mL; and,
  • in urine at 20 ng/mL

In this instance, the limits are new, as in first time established.  Noting that there has been a Dexomethosone limit in urine for some time, prior to this, the absence of these three levels would result in a positive swab being called by the laboratory.

It has been agreed previously to maintain uniformity to allow for consistent approaches by laboratories and veterinarians across the country.

Contact Stewards in your State with any queries.

Ends.

 

Related News

23 May 2024
Redcliffe Track Lights Upgrade
As recently announced the Redcliffe Harness Racing Club's track flood lighting will undergo a $6m upgrade including the installation of LED lights. Throughout the project the Club and RQ will work with the contractor to keep racing operational, however some changes will be necessary to complete the...
9 May 2024
HRNSW Review of Penalty Guidelines
HRNSW advises the NSW Harness Racing Industry that a review of the HRNSW Penalty Guidelines will be undertaken, commencing on Monday 17 June 2024 when HRNSW will meet with kindred bodies including HRICG and UHRA. Any industry participant who would like to provide a submission for consideration during...
30 April 2024
VIC - Amendments to Australian Harness Racing Rules and Victorian Local Rules
Harness Racing Victoria (HRV) has adopted amendments to the Harness Racing Rules, to be effective as of 1 May 2024. CLICK HERE TO READ MORE IN INTEGRITY MATTERS Integrity Matters is your new home of Victorian integrity at thetrots.com.au
29 April 2024
Redcliffe Track Lighting Upgrade - Thursday Meetings
As recently announced the Redcliffe Harness Racing Club's track flood lighting will undergo a $6m upgrade including the installation of LED lights. Throughout the project the Club and RQ will work with the contractor to keep the impact on the racing schedule to a minimum, however some changes will...
Click for more