Frankie Dettori has been temporarily suspended from riding in France due to his positive test for a banned substance.
The 41-year-old champion jockey made his representation via conference call at the Medical Committee of the French racing authority, France Galop, in Paris.
However, the file has been passed on to the French stewards, who will pass judgement within a fortnight.
A statement from France Galop read: "Following yesterday's examination of the file and after having duly notified the jockey Lanfranco Dettori of its decision, the Medical Committee has temporarily suspended the said jockey from riding in races in France, based on medical grounds.
"According to article 143 of the Rules of Racing, the Medical Committee's report has been passed on to the France Galop stewards. The France Galop stewards will be studying the file within the next fortnight before deciding what action will be taken in accordance with the Rules of Racing."