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U.S. Department of Health and Human Services

CFR - Code of Federal Regulations Title 21

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The information on this page is current as of Oct 01, 2021.

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

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[Code of Federal Regulations]
[Title 21, Volume 6]
[CITE: 21CFR558.248]



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. 558.248 Erythromycin.

(a) Specifications. Type A medicated articles containing 92.5 grams per pound erythromycin (as the thiocyanate salt).

(b) Sponsor. See No. 061133 in § 510.600(c) of this chapter.

(c) Related tolerances. See § 556.230 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 erythromycin medicated feeds must not exceed 6 months from the date of issuance. VFDs for erythromycin shall not be refilled.

(e) Conditions of use - (1) Chickens -

Erythromycin in grams/ton Combination in grams/ton Indications for use Limitations Sponsor
(i) 92.5Chickens: As an aid in the prevention of chronic respiratory disease during periods of stressFeed for 2 days before stress and 3 to 6 days after stress. Withdraw 24 hours before slaughter061623
(ii) 92.5Chickens: As an aid in the prevention of infectious coryzaFeed for 7 to 14 days. Withdraw 24 hours before slaughter061623
(iii) 185Chickens: As an aid in the prevention and reduction of lesions and in lowering severity of chronic respiratory disease (CRD)Feed for 5 to 8 days. Withdraw 48 hours before slaughter. Do not use in birds producing eggs for food061623

(2) Turkeys -

Erythromycin thiocyanate in grams/ton Combination in grams/ton Indications for use Limitations Sponsor
(i) 92.5Turkeys: As an aid in the prevention of chronic respiratory disease during periods of stressFeed for 2 days before stress and 3 to 6 days after stress061623
(ii) 185Turkeys: As an aid in the prevention and reduction of lesions and in lowering severity of chronic respiratory disease (CRD)Feed for 5 to 8 days. Do not use in birds producing eggs for food061623

[41 FR 10999, Mar. 15, 1976, as amended at 45 FR 56799, Aug. 26, 1980; 49 FR 31281, Aug. 6, 1984; 51 FR 7397, Mar. 3, 1986; 52 FR 2684, Jan. 26, 1987; 54 FR 12189, Mar. 24, 1989; 66 FR 14074, Mar. 9, 2001; 68 FR 4915, Jan. 31, 2003; 79 FR 10982, Feb. 27, 2014; 81 FR 36790, June 8, 2016; 81 FR 95004, Dec. 27, 2016; 84 FR 8975, Mar. 13, 2019]

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