Narasin and nicarbazin.

21 C.F.R. § 558.364
in effectEffective: 2024-07-01
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(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.

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