Jul. 7, 2009 (United Press International) -- The Kentucky Horse Racing Commission doubled trainer Rick Dutrow's recommended suspension after a horse tested positive for high levels of Clenbuterol.

The commission voted 6-5 Tuesday to hand down the 30-day penalty to Dutrow. A stewards group and hearing officer had initially recommended a 15-day suspension in April, Thoroughbred Times said.

Dutrow also will have to return all earnings from Salute the Count, who finished second in the $100,000 Aegon (NYSE:AEG) Turf Sprint.

Dutrow, who has 10 days to file an appeal in circuit court, also was the trainer for Big Brown, the winner of both the Kentucky Derby and Preakness Stakes in 2008.

Clenbuterol allows for greater lung capacity, similar to steroids. Under horse racing rules, a violation regarding Clenbuterol could result in a suspension of up to 60 days and a loss of purse.