eCFR Reference Browser

---

title: "21 CFR §558.550"

source: "https://www.ecfr.gov/current/title-21/section-558.550"

title_number: "21"

volume_number: "6"

chapter_number: "Unknown"

subchapter_code: "E"

subchapter_subject: "ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS"

part_code: "558"

part_subject: "NEW ANIMAL DRUGS FOR USE IN ANIMAL FEEDS"

subpart_code: "B"

subpart_subject: "Specific New Animal Drugs for Use in Animal Feeds"

section_number: "558.550"

section_subject: "Salinomycin."

cfr_reference: "21 CFR 558.550"

title_name: "Title 21"

title_subject: "Food and Drugs"

parts_covered: "Parts 500 to 599"

revised_date: "Revised as of April 1, 2019"

publication_date: "As of April 1, 2019"

contains_description: "Containing a codification of documents of general applicability and future effect"

publication_info: "Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register"

---

(a)Specifications. Type A medicated articles containing 30 or 60 grams of salinomycin activity per pound (as salinomycin sodium biomass).

(b)Sponsor. See No. 016592 in § 510.600(c) of this chapter.

(c)Related tolerances. See § 556.592 of this chapter.

(d)Special considerations. Not approved for use with pellet binders.

(e)Conditions of use. It is used as follows:

(1)Chickens—

(2)Game birds—

(3)Salinomycin may also be used in combination with:

(i)Chlortetracycline as in § 558.128.

(ii)Lincomycin as in § 558.325.

(iii)Oxytetracycline as in § 558.450.

(iv)Virginiamycin as in § 558.635.

For Federal Register citations affecting § 558.550, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.

§558.550 - Salinomycin.