Michael Whitaker suspended in horse doping case
The International Equestrian Federation (FEI) has confirmed British rider Michael Whitaker has been provisionally suspended after his mount Thackeray tested positive in a competition last May at La Baule, France.
The FEI said Thackeray would remain grounded until the B sample has been analysed.
Michael Whitaker believes the synthetic hormone altrenogest was administered to the horse with its feed. The substance is found in Regu-Mate and is used as an anti-irritant in hot conditions.
Younger brother of British showjumping champion John Whitaker, Michael could now miss the European Championships which take place at Windsor at the end of August.
Regu-Mate promotional material lists its benefits and uses as ...
Regu-Mate the proven performer for performance mares - When you’re campaigning a mare, every advantage counts. That’s why more and more trainers are turning to Regu-Mate to suppress estrus and make their mares’ performances more predictable.
- Regu-Mate effectively suppresses estrus in 95 percent of mares after 3 days of treatment.
- When treatment is discontinued, mares exhibiting regular estrous cycles return to estrus within 4 to 5 days following treatment and continue to cycle normally.
- Regu-Mate can help alleviate moodiness and temperament changes associated with estrus.
- It’s easy to administer – orally or top-dressed on grain.

A full British contingent of two senior teams, three female and two male individual vaulters and six horses are off to Aachen this weekend for the annual CVIO at the World Equestrian Festival from 26th June to 5th July.
Beaufort Polo Club
The 2009 Royal Windsor Horse Show, 13-17 May, is to showcase the best of British top and up-and-coming equestrian talent with two new dressage competitions, sponsored by the British Equestrian Federation (BEF) World Class Programme.


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