Trainer Gerard Butler will face a disciplinary hearing next month after admitting that he injected nine of his horses with a substance containing a banned anabolic steroid.
Butler has claimed that he treated the horses with a Sungate product to help with injured joints, but insists that he had no knowledge of the banned steroid.
The British Horseracing Authority have announced that an inquiry will take place from November 18 to 20, according to BBC Sport.
The banned steroid was found when the horses were tested at Butler's Newmarket stables in February.