subchapter_subject: "ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS"
part_code: "520"
part_subject: "ORAL DOSAGE FORM NEW ANIMAL DRUGS"
subpart_code: "B"
subpart_subject: "Specific Administrative Rulings and Decisions"
section_number: "520.2220a"
section_subject: "Sulfadimethoxine oral solution and soluble powder."
cfr_reference: "21 CFR 520.2220a"
title_name: "Title 21"
title_subject: "Food and Drugs"
parts_covered: "Parts 500 to 599"
revised_date: "Revised as of April 1, 2019"
publication_date: "As of April 1, 2019"
contains_description: "Containing a codification of documents of general applicability and future effect"
publication_info: "Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register"
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(a)Specifications. (1) Each ounce of solution contains 3.75 grams (12.5 percent) sulfadimethoxine.
(2)Each 107 grams of powder contains the equivalent of 94.6 grams sulfadimethoxine as sulfadimethoxine sodium.
(b)Sponsors. See sponsor numbers in § 510.600(c) of this chapter:
(1)Nos. 016592, 054771, 054925, and 069043 for use of the product described in paragraph (a)(1) of this section.
(2)Nos. 016592, 054771, 054925, 058829, 061133, and 066104 for use of the product described in paragraph (a)(2) of this section.
(c)Related tolerances. See § 556.640 of this chapter.
(d)Conditions of use—(1) Broiler and replacement chickens—(i) Amount. Administer 1.875 grams per gallon (0.05 percent) of drinking water for 6 consecutive days.
(ii)Indications for use. For treatment of outbreaks of coccidiosis, fowl cholera, and infectious coryza.
(iii)Limitations. Withdraw 5 days before slaughter. Federal law restricts this drug to use by or on the order of a licensed veterinarian.
(2)Turkeys—(i) Amount. Administer 0.938 grams per gallon (0.025 percent) of drinking water for 6 consecutive days.
(ii)Indications for use. Growing turkeys: For treatment of disease outbreaks of coccidiosis and fowl cholera.
(iii)Limitations. Withdraw 5 days before slaughter. Federal law restricts this drug to use by or on the order of a licensed veterinarian.
(3)Cattle—(i) Amount. 1.18 to 2.36 grams per gallon (0.031 to 0.062 percent) of drinking water. As a drench, administer 2.5 grams per 100 pounds of body weight for first day, then 1.25 grams per 100 pounds of body weight per day for the next 4 consecutive days. If no improvement within 2 to 3 days, reevaluate diagnosis. Do not treat beyond 5 days.
(ii)Indications for use. Dairy calves, dairy heifers, and beef cattle: For the treatment of shipping fever complex and bacterial pneumonia associated with Pasteurella spp. sensitive to sulfadimethoxine; and calf diphtheria and foot rot associated with Fusobacterium necrophorum (Sphaerophorus necrophorus) sensitive to sulfadimethoxine.
(iii)Limitations. Withdraw 7 days before slaughter. A withdrawal period has not been established for this product in preruminating calves. Do not use in calves to be processed for veal. Federal law restricts this drug to use by or on the order of a licensed veterinarian. Federal law prohibits the extralabel use of this product in lactating dairy cattle.