1. Detection Times are the intervals between the time of the last drug administration and the time at which urine (and blood) concentrations are below the laboratory screening limit. It is important to note that a Detection Time is not equivalent to the Withdrawal Time as used by Veterinary Surgeons. The Withdrawal Time should be longer than a Detection Time to take into account the impact of all sources of animal variability (e.g age, sex, breed, training, racing) in order to avoid a positive test and account for the medicinal product actually administered (e.g formulation, route of administration, dosage regimen, duration of treatment).

2. Further details and more information on medication control, including a downloadable list of Detection Times (http://www.britishhorseracing.com/resources/equine-science-and-welfare/medication-control.asp ) and an extensive Questions and Answers section (http://www.britishhorseracing.com/resources/equine-science-and-welfare/medication-and-doping-faqs.asp ) are available on the Authority’s website.

3. This Detection Time advice only applies to those regulated by the British Horseracing Authority. Although similar principles apply, equestrian sport is regulated by others (www.feicleansport.org )