§558.364. Narasin and nicarbazin.

21 C.F.R. § 558.364

(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.

Notes, amendments, and revision history

[83 FR 64742, Dec. 18, 2018, as amended at 84 FR 8981, Mar. 13, 2019; 88 FR 14907, Mar. 10, 2023; 88 FR 16550, Mar. 20, 2023]

Authority: 21 U.S.C. 354, 360b, 360ccc, 360ccc-1, 371.

Source: 40 FR 13959, Mar. 27, 1975, unless otherwise noted.

[83 FR 64742, Dec. 18, 2018, as amended at 84 FR 8981, Mar. 13, 2019; 88 FR 14907, Mar. 10, 2023; 88 FR 16550, Mar. 20, 2023]