---
kind: "section"
citation: "21 C.F.R. § 520.154c"
title: "21"
number: "520.154c"
heading: "Bacitracin zinc soluble powder."
url: "https://uscodex.org/cfr/21/520.154c"
---

# §520.154c. Bacitracin zinc soluble powder.

- (a) **Specifications.** Each pound contains the equivalent of not less than 5 grams of bacitracin.
- (b) **Sponsor.** See No. 054771 in [§ 510.600(c)](/cfr/21/510.600.md?p=c) of this chapter.
- (c) **Related tolerances.** See [§ 556.70](/cfr/21/556.70.md) of this chapter.
- (d) **Conditions of use—**
  - (1) **Broiler chickens—**
    - (i) **Amount.** 100 milligrams per gallon in drinking water.
      - (A) **Indications for use.** Prevention of necrotic enteritis caused by Clostridium perfringens susceptible to bacitracin zinc.
      - (B) **Limitations.** Prepare a fresh solution daily.
    - (ii) **Amount.** 200 to 400 milligrams per gallon in drinking water.
      - (A) **Indications for use.** Control of necrotic enteritis caused by Clostridium perfringens susceptible to bacitracin zinc.
      - (B) **Limitations.** Prepare a fresh solution daily.
  - (2) **Growing quail—**
    - (i) **Amount.** 500 milligrams per gallon in drinking water for 5 days followed by 165 milligrams per gallon in drinking water for 10 days.
    - (ii) **Indications for use.** Control of ulcerative enteritis caused by Clostridium spp. Susceptible to bacitracin zinc.
    - (iii) **Limitations.** Prepare a fresh solution daily.

## Notes

### Amendments

[57 FR 37322, Aug. 18, 1992, as amended at 67 FR 78355, Dec. 24, 2002; 79 FR 28818, May 20, 2014]

### Authority

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

### Source

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

### Amendments

[57 FR 37322, Aug. 18, 1992, as amended at 67 FR 78355, Dec. 24, 2002; 79 FR 28818, May 20, 2014]