Alligator Blood who is in the spelling paddock with his connections still awaiting the results of tests on the B sample taken from the gelding after his Magic Millions Guineas win in January.
The first sample was found to contain altrenogest, a substance which can only be used on fillies and mares.
Managing owner Alan Endresz said on Twitter earlier this week, swabs from Alligator Blood’s Melbourne races, including his win in the Group One Australian Guineas, had been cleared and prize money paid.
The QRIC spokesman said there would be no further comment until after the B sample result was known.
Altrenogest, more commonly known as Regu-mate, is banned for use on male horses.
It is a hormone given to keep female horses from being in season, or if they are already pregnant, to keep them from losing the foal.