21 CFR 558.364
§ 558.364 Narasin and nicarbazin.
United States · 21 CFR — Food and Drugs · Status: effective
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- Citation
- 21 CFR 558.364, § 558.364 Narasin and nicarbazin, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/87876
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Full text
(a) Specifications. A fixed-ratio, combination drug Type A medicated article containing 36 grams narasin and 36 grams nicarbazin per pound.
(b) Sponsor. See No. 058198 in § 510.600(c) of this chapter.
(c) Tolerances. See §§ 556.428 and 556.445 of this chapter.
(d) Conditions of use. It is used as follows:
(1) Chickens—
(2) Narasin and nicarbazin fixed-ratio, combination drug Type A medicated articles may also be used in combination with:
(i) Avilamycin as in § 558.68.
(ii) Virginiamycin as in § 558.635.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.