Danny O’Brien faces fourth cobalt positive test: Racing Post 3/17/15

By AAP Racing Australia: Another Danny O'Brien-trained horse, Bullpit, has returned a high level of cobalt. A swab taken from Bullpit following his win at Moonee Valley on December 19 showed a level higher than the allowed 200 micrograms per litre of urine. O'Brien was told in January that three of his horses - Bondeiger,

Doping allegations prompt inquiries into two horse racing trainers: ABC.net.au 10/7/14

By Giselle Wakatama Allegations of serious doping violations have prompted inquiries into two New South Wales horse trainers, including one in Newcastle. Horse racing officials have spent the past year on alert for the banned additive cobalt chloride It boosts red blood cells and mimics the effects of the banned performance enhancing drug EPO. Racing