---
kind: "section"
citation: "21 C.F.R. § 520.110"
title: "21"
number: "520.110"
heading: "Apramycin sulfate soluble powder."
url: "https://uscodex.org/cfr/21/520.110"
---

# §520.110. Apramycin sulfate soluble powder.

- (a) **Specifications.** A water soluble powder used to make a medicated drinking water containing apramycin sulfate equivalent to 0.375 gram of apramycin activity per gallon of drinking water.
- (b) **Sponsor.** See No. 058198 in [§ 510.600(c)](/cfr/21/510.600.md?p=c) of this chapter.
- (c) **Related tolerances.** See [§ 556.52](/cfr/21/556.52.md) of this chapter.
- (d) **Conditions of use in swine—**
  - (1) **Amount.** Administer in drinking water at the rate of 12.5 milligrams of apramycin per kilogram (5.7 milligrams per pound) of body weight per day for 7 days.
  - (2) **Indications for use.** For the control of porcine colibacillosis (weanling pig scours) caused by strains of Escherichia coli sensitive to apramycin.
  - (3) **Limitations.** Do not slaughter treated swine for 28 days following treatment. Federal law restricts this drug to use by or on the order of a licensed veterinarian.

## Notes

### Amendments

[47 FR 15771, Apr. 13, 1982, as amended at 49 FR 19642, May 9, 1984; 53 FR 37753, Sept. 28, 1988; 79 FR 28818, May 20, 2014; 81 FR 48702, July 26, 2016; 81 FR 94989, Dec. 27, 2016]

### Authority

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

### Source

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

### Amendments

[47 FR 15771, Apr. 13, 1982, as amended at 49 FR 19642, May 9, 1984; 53 FR 37753, Sept. 28, 1988; 79 FR 28818, May 20, 2014; 81 FR 48702, July 26, 2016; 81 FR 94989, Dec. 27, 2016]