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Code · CFR · Title 21 — Food and Drugs · Part 558 — New Animal Drugs for Use in Animal Feeds · § 558.248

§ 558.248. Erythromycin.

358 words·~2 min read·/us/cfr/t21/s§ 558.248·

A research copy — for the controlling text, always check the official state or federal source. Not legal advice.

(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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