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: "520.1120a"
section_subject: "Haloxon drench."
cfr_reference: "21 CFR 520.1120a"
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. Each packet contains 141.5 grams haloxon.
(b)Sponsor. See No. 000061 in § 510.600(c) of this chapter.
(c)Special considerations. Do not use any drug, insecticide, pesticide, or other chemical having cholinesterase-inhibiting activity either simultaneously or within a few days before or after treatment with haloxon.
(d)Related tolerances. See § 556.310 of this chapter.
(e)Conditions of use in cattle—(1) Amount. Dissolve each packet in 32 fluid ounces of water and administer as follows: For animals weighing up to 100 pounds: 1/2 fluid ounce; for animals weighing 100 to 150 pounds: 3/4 fluid ounce; for animals weighing 150 to 200 pounds: 1 fluid ounce; for animals weighing 200 to 300 pounds: 1 1/2 fluid ounces; for animals weighing 300 to 450 pounds: 2 fluid ounces; for animals weighing 450 to 700 pounds: 3 fluid ounces; for animals weighing 700 to 1,000 pounds: 4 fluid ounces; for animals weighing 1,000 to 1,200 pounds: 5 fluid ounces; for animals weighing over 1,200 pounds: 6 fluid ounces. Retreat in 3 to 4 weeks.
(2)Indications for use. For control of gastrointestinal roundworms of the genera Haemonchus, Ostertagia,
Trichostrongylus, and Cooperia.
(3)Limitations. Do not treat dairy animals of breeding age. Do not treat within 1 week of slaughter.