21 CFR 520.1120b - Haloxon boluses.

Regulations last checked for updates: Nov 25, 2024

Title 21 - Food and Drugs last revised: Nov 21, 2024

View all text of Part 520 [§ 520.23 - § 520.2654]

§ 520.1120b - Haloxon boluses.

(a) Specifications. Each bolus contains 10.1 grams of haloxon.

(b) Sponsor. See No. 000061 in § 510.600(c) of this chapter.

(d) Conditions of use in cattle—(1) Amount. Administered one bolus per 500 pounds body weight (35 to 50 milligrams per kilogram of body weight). Retreat in 3 to 4 weeks.

(2) Indications for use. For control of gastrointestinal roundworms of the genera Haemonchus, Ostertagia, Trichostrongylus, and Cooperia.

(3) Limitations. Do not treat dairy animals of breeding age or older. Do not treat within 1 week of slaughter.

[40 FR 13838, Mar. 27, 1975, as amended at 44 FR 61591, Oct. 29, 1979; 46 FR 48642, Oct. 2, 1981; 61 FR 8873, Mar. 6, 1996; 62 FR 61625, Nov. 19, 1997; 78 FR 28822, May 20, 2014]

authority: 21 U.S.C. 360b.

source: 40 FR 13838, Mar. 27, 1975, unless otherwise noted.

cite as: 21 CFR 520.1120b