---
kind: "section"
citation: "21 C.F.R. § 520.88e"
title: "21"
number: "520.88e"
heading: "Amoxicillin trihydrate boluses."
url: "https://uscodex.org/cfr/21/520.88e"
---

# §520.88e. Amoxicillin trihydrate boluses.

- (a) **Specifications.** Each bolus contains amoxicillin trihydrate equivalent to 400 milligrams (mg) amoxicillin.
- (b) **Sponsor.** See No. 054771 in [§ 510.600(c)](/cfr/21/510.600.md?p=c) of this chapter.
- (c) **Related tolerances.** See [§ 556.38](/cfr/21/556.38.md) of this chapter.
- (d) **Conditions of use in cattle—**
  - (1) **Amount.** Administer 400 mg per 100 pounds of body weight twice daily. Treatment should be continued for 48 hours after all symptoms have subsided but not to exceed 5 days.
  - (2) **Indications for use.** Treatment of bacterial enteritis when due to susceptible Escherichia coli in preruminating calves including veal calves.
  - (3) **Limitations.** Do not slaughter animals during treatment or for 20 days after the latest treatment. Federal law restricts this drug to use by or on the order of a licensed veterinarian.

## Notes

### Amendments

[57 FR 37320, Aug. 18, 1992, as amended at 60 FR 55659, Nov. 2, 1995; 62 FR 5526, Feb. 6, 1997; 79 FR 28817, May 20, 2014]

### Authority

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

### Source

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

### Amendments

[57 FR 37320, Aug. 18, 1992, as amended at 60 FR 55659, Nov. 2, 1995; 62 FR 5526, Feb. 6, 1997; 79 FR 28817, May 20, 2014]