{"data":{"id":"us/21-cfr-556.286","jurisdiction":"us","citation":"21 CFR 556.286","heading":"Flunixin.","body":"(a) Acceptable daily intake (ADI). The ADI for total residue of flunixin is 0.72 µg/kg of body weight per day.\n(b) Tolerances. The tolerances for flunixin are:\n(1) Cattle. (i) Liver (target tissue): 125 ppb flunixin free acid (marker residue).\n(ii) Muscle: 25 ppb flunixin free acid.\n(iii) Milk: 2 ppb 5-hydroxy flunixin (marker residue).\n(2) Swine. (i) Liver (target tissue): 30 ppb flunixin free acid (marker residue).\n(ii) Muscle: 25 ppb flunixin free acid.\n(c) Related conditions of use. See §§ 522.956, 522.970, 522.1664, and 524.970 of this chapter.","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER E—ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS","PART 556—TOLERANCES FOR RESIDUES OF NEW ANIMAL DRUGS IN FOOD","Subpart B—Specific Tolerances for Residues of Approved and Conditionally Approved New Animal Drugs"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-21.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:47Z","sha256":"a3d76aa1351510862ccdfb6664c7ab1867261876fd4abc4f16ee9b8c323cdd74","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-556.283","next":"us/21-cfr-556.290"},"notice":"GroundRules: Original legal text. Not legal advice."}