ENGLISH RACING NEWS: A HORSE owned by Britain's Queen Elizabeth has tested positive for a prohibited substance, the British Horseracing Authority (BHA) has revealed.

Trainer Nicky Henderson has been charged by the BHA in connection with a sample from the mare Moonlit Path taken after a race at Huntingdon in February when she finished sixth of 11 in a novices' hurdle.

The sample contained tranexamic acid, a legitimate drug commonly marketed as Cyklokapron and used on humans as well as animals to prevent or treat excessive bleeding. It is allowed by horse racing authorities in some parts of the US but not in Britain where horses must be drug-free on race day.

An inquiry is due to be held in June on a date to be confirmed. Moonlit Path is one of 41 horses owned by Queen Elizabeth.

Henderson (58), one of the country's leading jumps trainers, won the Champion Hurdle in March with Punjabi for the fourth time. He issued a statement, saying: "Unfortunately Moonlit Path tested positive for a prohibited substance after finishing sixth on her debut at Huntingdon.

"The substance concerned was administered by my vet entirely in the interests of the horse's welfare, which is always paramount. There was no intention to enhance performance and it is worth pointing out that we won the race in question with the odds-on Ravello Bay. We have co-operated fully with the BHA throughout their investigation and I would prefer to make no further comment before the hearing."