Horse medication withdrawal and detection times, by rulebook

A detection time is the approximate period a drug or its metabolite stayed detectable in the horses studied, at the dose and route studied. It is not a withdrawal time. No governing body publishes withdrawal times for you; your veterinarian sets the safety margin for your horse. Nothing on this page is a veterinary ruling or a promise that a horse will test clean. Rules change; the document, version and page behind every value are linked so you can check the current text. Looking for a medication that is not here? ShowSafe Pro reports it as "Unknown", never "Clear", and quotes what each rulebook says about unlisted substances.