CFR - Code of Federal Regulations Title 21

The information on this page is current as of Dec 22, 2023.

For the most up-to-date version of CFR Title 21, go to the Electronic Code of Federal Regulations (eCFR).

[Code of Federal Regulations]

[Title 21, Volume 6]

[CITE: 21CFR558.582]

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 558 -- NEW ANIMAL DRUGS FOR USE IN ANIMAL FEEDS

Subpart B - Specific New Animal Drugs for Use in Animal Feeds

Sec. 558.582 Sulfamerazine.

(a) Specifications. Type A medicated articles containing 99 percent sulfamerazine.

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

(c) Related tolerances. See § 556.660 of this chapter.

(d) Special considerations. (1) Federal law restricts medicated feed containing this veterinary feed directive (VFD) drug to use by or on the order of a licensed veterinarian. See § 558.6 for additional requirements.

(2) The expiration date of VFDs for sulfamerazine medicated feeds must not exceed 6 months from the date of issuance. VFDs for sulfamerazine shall not be refilled.

(e) Conditions of use. It is used in fish feed for as follows:

Sulfamerazine grams/ton	Combination in grams/ton	Indications for use	Limitations	Sponsor
(1) To deliver 10 grams of sulfamerazine per 100 pounds of fish per day		Rainbow trout, brook trout, and brown trout: For control of furunculosis	Formulate to deliver 10 grams of sulfamerazine per 100 pounds of fish per day. Treat for not more than 14 days. Do not treat within 3 weeks of marketing or stocking in stream open to fishing	054771
(2) [Reserved]

[81 FR 95013, Dec. 27, 2016]