GroundRules
21 CFR 520.90c: c Ampicillin boluses.
Where this section sits in the code
- 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
(a) Specifications. Each bolus contains ampicillin trihydrate equivalent to 400 milligrams of ampicillin.
(b) Sponsor. See No. 054771 in § 510.600(c) of this chapter.
(c) Related tolerances. See § 556.40 of this chapter.
(d) Conditions of use in nonruminating calves—(1) Amount. 5 milligrams per pound of body weight twice daily not to exceed 4 days.
(2) Indications for use. Oral treatment of bacterial enteritis (colibacillosis) caused by E. coli.
(3) Limitations. Treated calves must not be slaughtered for food during treatment and for 7 days after the last treatment. Federal law restricts this drug to use by or on the order of a licensed veterinarian.
Collected 2026-08-27T02:24:47Z. Source file · JSON