The BHA has informed trainers by email of some new Detection Times for misoprostol and xylazine, and an updated Detection Time for dantrolene. These Detection Times will be effective from 1st June 2019.
The BHA Published Detection Times have been updated to reflect this change, and can be viewed here. Although the BHA informs the British Equine Veterinary Association of all these changes, it is worth checking your vet is aware.
Neither Dantrolene nor Misoprostol are licensed for use in horses in the UK but they may be prescribed for use in horses by a veterinary surgeon under the Veterinary Medicine Directorate’s Cascade legislation.