Regulations last checked for updates: Mar 13, 2025

Title 21 - Food and Drugs last revised: Feb 25, 2025
§ 556.286 - Flunixin.

(a) Acceptable daily intake (ADI). The ADI for total residue of flunixin is 0.72 µg/kg of body weight per day.

(b) Tolerances. The tolerances for flunixin are:

(1) Cattle. (i) Liver (target tissue): 125 ppb flunixin free acid (marker residue).

(ii) Muscle: 25 ppb flunixin free acid.

(iii) Milk: 2 ppb 5-hydroxy flunixin (marker residue).

(2) Swine. (i) Liver (target tissue): 30 ppb flunixin free acid (marker residue).

(ii) Muscle: 25 ppb flunixin free acid.

(c) Related conditions of use. See §§ 522.956, 522.970, 522.1664, and 524.970 of this chapter.

authority: 21 U.S.C. 342,360b,371
source: 84 FR 32993, July 11, 2019, unless otherwise noted.
cite as: 21 CFR 556.286