subchapter_subject: "ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS"
part_code: "558"
part_subject: "NEW ANIMAL DRUGS FOR USE IN ANIMAL FEEDS"
subpart_code: "B"
subpart_subject: "Specific New Animal Drugs for Use in Animal Feeds"
section_number: "558.612"
section_subject: "Tiamulin."
cfr_reference: "21 CFR 558.612"
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. Type A article containing 363.2 grams of tiamulin hydrogen fumarate per pound.
(b)Approvals. See No. 058198 in § 510.600(c) of this chapter.
(c)Related tolerances. See § 556.732 of this chapter.
(d)Special considerations. (1) Swine being treated with tiamulin should not have access to feeds containing polyether ionophores (e.g., lasalocid, monensin, narasin, salinomycin, or semduramycin) as adverse reactions may occur. If signs of toxicity occur, discontinue use.
(2)The effects of tiamulin on swine reproductive performance, pregnancy, and lactation have not been determined.