{"data":{"id":"us/21-cfr-520.2123c","jurisdiction":"us","citation":"21 CFR 520.2123c","heading":"c Spectinomycin solution.","body":"(a) Specifications. Each milliliter of solution contains spectinomycin dihydrochloride pentahydrate equivalent to 50 milligrams (mg) spectinomycin.\n(b) Sponsors. See Nos. 016592, 054771, and 061133 in § 510.600(c) of this chapter.\n(c) Related tolerances. See § 556.600 of this chapter.\n(d) Conditions of use in swine—(1) Amount. Administer 5 mg per pound (lb) of body weight orally twice daily for 3 to 5 days.\n(2) Indications for use. For the treatment and control of porcine enteric colibacillosis (scours) caused by E. coli susceptible to spectinomycin in pigs under 4 weeks of age.\n(3) Limitations. Do not administer to pigs over 15 lb body weight or over 4 weeks of age. Do not administer within 21 days of slaughter. Federal law restricts this drug to use by or on the order of a licensed veterinarian.","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 520—ORAL DOSAGE FORM 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":"a72bb3660ddc1359f83ed3323d56f3a30d22294034968707f56436e88e786e98","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-520.2123b","next":"us/21-cfr-520.2130"},"notice":"GroundRules: Original legal text. Not legal advice."}