Phenylbutazone shall be permitted under the following conditions:
- (1) Phenylbutazone shall not be administered within twenty-four (24) hours prior to the scheduled post time for the first Race on the Day the Horse is entered to Race.
- (2) The concentration of Phenylbutazone in the post-race Biological Sample consisting of blood or Plasma shall not exceed the listed threshold and is a violation of this section.
Added at 35 Ok Reg 347, eff 12-18-17 (emergency)
Added at 35 Ok Reg 1535, eff 9-14-18
Amended at 37 Ok Reg 1684, eff 9-14-20
Amended at 41 Ok Reg, Number 23, effective 8-25-24