Jack Mitchell has been banned from racing for six months after testing positive for cocaine at Newmarket in May.
The jockey appeared before the disciplinary panel of the British Horseracing Authority and despite it being the first time that he had been found guilty of such an offence, he was suspended for a long period.
Mitchell’s solicitor Christopher Stewart-Moore issued a statement from the rider saying: “I accept the findings of the BHA’s Medical Committee unreservedly.
“I acknowledge that my actions which led to me testing positive for a metabolite of cocaine were unacceptable as well as foolish.
“I am extremely sorry for letting down those trainers who have supported me in the past and who continue to support me.
“I am also remorseful for the anguish that my actions have caused to my family and I am grateful for their support and understanding throughout this difficult time.
“I would like to reassure everyone in racing that this was a one-off occurrence and that it will never happen again.
“I have been tested at the racecourse by BHA testers on many occasions before and since the positive reading with negative results in each case.
“I have the support of my family, trainers and friends to go forward to next season with a positive note.”
Mitchell will be suspended from October 7 to April 6 inclusive.
A statement from the BHA said that the Panel “accepted an admission from Jack Mitchell, who was legally represented, that he was in breach of Rule (D)65 of the Rules of Racing.”