Federal regulations · Through 2026-08-25 · Newer source version available

21 CFR 522.2340: Sulfomyxin.

(a) Specifications. Sulfomyxin for injection is sterile. It is derived from the antibiotic substance produced by the growth of Bacillus polymyxa or is the same substance produced by any other means.
(b) Sponsor. See No. 054771 in § 510.600(c) of this chapter.
(c) Special considerations. The quantities of antibiotic in paragraph (e) of this section refer to the activity of the appropriate standard.
(d) Related tolerances. See § 556.700 of this chapter.
(e) Conditions of use. (1) It is used or intended for use in chickens and turkeys as an aid in the treatment of disease caused or complicated by E. coli, such as colibacillosis and complicated chronic respiratory disease.
(2) It is administered by subcutaneous injection as follows:
Age of birds in days Antibiotic activity
Chickens (units) Turkeys (units)
1 to 14 12,500 12,500
15 to 28 25,000 25,000
29 to 63 50,000 50,000
Over 63 50,000 100,000
(3) A second injection may be given 3 days later if symptoms persist.
(4) Not for use in laying hens; do not treat chickens within 5 days of slaughter. Do not treat turkeys within 7 days of slaughter. Federal law restricts this drug to use by or on the order of a licensed veterinarian.

Where this section sits in the code

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 522—IMPLANTATION OR INJECTABLE DOSAGE FORM NEW ANIMAL DRUGS

(a) Specifications. Sulfomyxin for injection is sterile. It is derived from the antibiotic substance produced by the growth of Bacillus polymyxa or is the same substance produced by any other means.

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

(c) Special considerations. The quantities of antibiotic in paragraph (e) of this section refer to the activity of the appropriate standard.

(d) Related tolerances. See § 556.700 of this chapter.

(e) Conditions of use. (1) It is used or intended for use in chickens and turkeys as an aid in the treatment of disease caused or complicated by E. coli, such as colibacillosis and complicated chronic respiratory disease.

(2) It is administered by subcutaneous injection as follows:

Age of birds in days Antibiotic activity

Chickens (units) Turkeys (units)

1 to 14 12,500 12,500

15 to 28 25,000 25,000

29 to 63 50,000 50,000

Over 63 50,000 100,000

(3) A second injection may be given 3 days later if symptoms persist.

(4) Not for use in laying hens; do not treat chickens within 5 days of slaughter. Do not treat turkeys within 7 days of slaughter. Federal law restricts this drug to use by or on the order of a licensed veterinarian.

Collected 2026-08-27T02:24:47Z. Source file · JSON

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