---
kind: "section"
citation: "21 C.F.R. § 520.2046"
title: "21"
number: "520.2046"
heading: "Pyrantel tartrate pellets."
url: "https://uscodex.org/cfr/21/520.2046"
---

# §520.2046. Pyrantel tartrate pellets.

- (a) **Specifications.**
  - (1) Each gram of pellets contains 12.5 milligrams (mg) (1.25 percent) pyrantel tartrate; or
  - (2) Each gram of pellets contains 21.1 mg (2.11 percent) pyrantel tartrate.
- (b) **Sponsors.** See sponsor numbers in [§ 510.600(c)](/cfr/21/510.600.md?p=c) of this chapter:
  - (1) **No.** 054771 for use of products described in [paragraph (a)](#a) as in [paragraph (c)](#c) of this section.
  - (2) **No.** 061133 for use of product described in [paragraph (a)(1)](#a-1) as in [paragraph (c)](#c) of this section.
- (c) **Conditions of use in horses—**
  - (1) **Amount.** Administer as a single dose at 12.5 mg per 2.2 pounds of body weight mixed with the usual grain ration.
  - (2) **Indications for use.** For the removal and control of infections from the following mature parasites: Large strongyles (Strongylus vulgaris, S. edentatus, S. equinus), small strongyles (Trichonema spp., Triodontophorus), pinworms (Oxyuris), and large roundworms (Parascaris).
  - (3) **Limitations.** Do not treat severely debilitated animals with this drug. Do not use in horses intended for human consumption.

## Notes

### Amendments

[79 FR 28828, May 20, 2014, as amended at 84 FR 8973, Mar. 13, 2019]

### Authority

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

### Source

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

### Amendments

[79 FR 28828, May 20, 2014, as amended at 84 FR 8973, Mar. 13, 2019]