21 CFR 558.485
§ 558.485 Pyrantel.
United States · 21 CFR — Food and Drugs · Status: effective
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- Citation
- 21 CFR 558.485, § 558.485 Pyrantel, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/87885
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Full text
(a) Specifications. Type A medicated articles containing 48 or 80 grams per pound pyrantel tartrate.
(b) Sponsors. See sponsors in § 510.600(c) of this chapter for use as follows:
(1) No. 066104: 48 and 80 grams per pound for use as in paragraph (e)(1) of this section.
(2) Nos. 017135 and 054771: 48 grams per pound for use as in paragraph (e)(2) of this section.
(c) Related tolerances. See § 556.560 of this chapter.
(d) Special considerations.
(1) See § 500.25 of this chapter. Consult a veterinarian before using in severely debilitated animals.
(2) Do not mix in Type B or Type C medicated feeds containing bentonite.
(e) Conditions of use—(1) Swine—
(2) Horses—
(ii) Top dress medicated feed—(A) Proprietary Formulas. The following feed can be manufactured only per an approved proprietary formula and specifications:
(B) [Reserved]
(3) Pyrantel may also be used in combination with:
(i) Carbadox as in § 558.115.
(ii) Lincomycin as in § 558.325.
(iii) Tylosin as in § 558.625.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.