The Rules provide for the selection of a number of Jockeys per race day to undertake and pass a breathalyser test for alcohol and to provide a urine sample for the purpose of testing for prohibited substances. All Jockeys are therefore required to be in the Jockeys' Room, Sha Tin Racecourse at least one hour before the first race on the day of the race meeting, irrespective of the time of the first race in which the Jockey has a riding engagement. This arrangement is also in place for those Jockeys invited to participate in the LONGINES IJC conducted at Happy Valley Racecourse.

2. The following are Prohibited Substances (Jockey) under the Club’s Rules:

Alcohol – at or above a threshold of 22 micrograms of ethanol per 100 millilitres of breath, or 50 milligrams of ethanol per 100 millilitres of blood
Amphetamines and amphetamine-like substances including the ‘Ecstacy’ group and excluding Pseudoephedrine, and Phenylpropanolamine
Benzodiazepines and Benzodiazepine-like substances (Please note: Sleeping tablets are known to contain these prohibited substances – refer below)
Benzylpiperazine (BZP), 3-Trifluoromethylphenylpiperazine (TFMPP) and other similar piperazine-based substances.
Cannabinoids – at or above a threshold of 15 nanograms of delta-9-tetrahydro-11-nor-cannabinol-9-carboxylic acid per millilitre in urine.
Ephedrine – at or above a threshold of 10 micrograms of ephedrine per millilitre in urine
Methylephedrine – at or above a threshold of 10 micrograms of methylephedrine per millilitre in urine
Ketamine and Tiletamine
Lasix (Furosemide) and other diuretics
Lysergic Acid Diethylamide (LSD)
Masking agents
Opioids excluding normal use of Codeine, Dextromethorphan, Dihydrocodeine, Ethylmorphine, Pholcodine, Propoxyphene and Tramadol.
Synthetic Cannabinoids

In particular, Jockey's should note the following:

* Lasix and other diuretics are deemed as prohibited substances.

* Sleeping tablets may contain substances which are prohibited under the Club’s Rules.

* Ephedrine and Methylephedrine are prohibited substances when found in urine at or above a threshold of 10 micrograms per millilitre in urine. These substances are commonly available in cough and cold medications either prescribed by a medical practitioner or, in some instances, available in over-the-counter medications. Please ensure that any medication being taken at or around the relevant time does not contain either Ephedrine or Methylephedrine.

* It at all times remains the responsibility of each Jockey to be free of prohibited substances (jockey) when riding in races or in track work in Hong Kong.