21 CFR § 520.2184 - Sulfachloropyrazine.

---
identifier: "/us/cfr/t21/s520.2184"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 520.2184 - Sulfachloropyrazine."
title_number: 21
title_name: "Food and Drugs"
section_number: "520.2184"
section_name: "Sulfachloropyrazine."
chapter_name: "FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "E"
subchapter_name: "ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS"
part_number: "520"
part_name: "ORAL DOSAGE FORM NEW ANIMAL DRUGS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "21 U.S.C. 360b."
regulatory_source: "40 FR 13838, Mar. 27, 1975, unless otherwise noted."
cfr_part: "520"
---


# 520.2184 Sulfachloropyrazine.

(a) *Specifications.* Each gram of powder contains 476 milligrams of sodium sulfachloropyrazine monohydrate.

(b) *Sponsor.* See No. 054771 in § 510.600(c) of this chapter.

(c) *Related tolerance.* See § 556.625 of this chapter.

(d) *Conditions of use in chickens.* It is used in the drinking water of broilers, breeder flocks, and replacement chickens as follows:

(1) *Amount.* Administer in drinking water as 0.03 percent solution for 3 days.

(2) *Indications for use.* For the treatment of coccidiosis.

(3) *Limitations.* Withdraw 4 days prior to slaughter. Do not use in chickens producing eggs for human consumption. Federal law restricts this drug to use by or on the order of a licensed veterinarian.

[79 FR 28829, May 20, 2014, as amended at 81 FR 94990, Dec. 27, 2016]