The maximum authorized threshold for Phenylbutazone, otherwise known as bute, is 2.0 micrograms per milliliter of plasma or serum when administered in accordance with Controlled Therapeutic Medication Schedule Version 4.2.1 dated December, 2020 and § 20:04:27:14.
S.D. Admin. R. 20:04:27:13.13
General Authority: SDCL 42-7-56(4).
Law Implemented: SDCL 42-7-47.
Association of Racing Commissioners International (ARCI), ARCI Controlled Therapeutic Medication Schedule for Horses Version 4.2.1 dated December, 2020. A copy may be obtained from the ARCI website at www.arci.com free of charge.