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: "520.1326a"
section_subject: "Mebendazole and trichlorfon powder."
cfr_reference: "21 CFR 520.1326a"
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 gram of powder contains 83.3 milligrams of mebendazole and 375.0 milligrams of trichlorofon.
(b)Sponsor. See No. 000061 in § 510.600(c) of this chapter.
(c)Conditions of use in horses—(1) Amount. 8.8 milligrams of mebendazole and 40 milligrams of trichlorofon per kilogram of body weight.
(2)Indications for use. It is used in horses for the treatment of infections of bots (Gastrophilus intestinalis and G. nasalis), large roundworms (Parascaris equorum), large strongyles (Strongylus edentatus, S. equinus, S. vulgaris), small strongyles, and pinworms (Oxyuris equi.)
(3)Limitations. Do not use in horses intended for human consumption. Federal law restricts this drug to use by or on the order of a licensed veterinarian.