---
kind: "section"
citation: "21 C.F.R. § 520.1803"
title: "21"
number: "520.1803"
heading: "Piperazine citrate capsules."
url: "https://uscodex.org/cfr/21/520.1803"
---

# §520.1803. Piperazine citrate capsules.

- (a) **Specifications.** Each capsule contains piperazine citrate equivalent to 140 milligrams of piperazine base.
- (b) **Sponsor.** See No. 021091 in [§ 510.600(c)](/cfr/21/510.600.md?p=c) of this chapter.
- (c) **Conditions of use in dogs and cats—**
  - (1) **Amount.** The contents of 1 capsule should be mixed with the food of the animal for each 5 pounds, or fraction thereof of body weight, except dogs weighing over 25 pounds should be given the contents of 6 capsules. The drug should be mixed in 1/2 of the regular feeding and when the animal has finished eating the dosed food, the remainder of the food may be given. Dogs and cats may be wormed at 6 to 8 weeks of age. The first treatment should be repeated 10 days later. Reinfection may occur. Repeat treatment if indicated.
  - (2) **Indications for use.** For the removal of large roundworms (Toxocara canis and Toxascaris leonina).
  - (3) **Limitations.** Severely debilitated animals should not be treated except on the advice of a veterinarian.

## Notes

### Amendments

[40 FR 13838, Mar. 27, 1975, as amended at 54 FR 38515, Sept. 19, 1989; 78 FR 28826, May 20, 2014]

### Authority

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

### Source

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

### Amendments

[40 FR 13838, Mar. 27, 1975, as amended at 54 FR 38515, Sept. 19, 1989; 78 FR 28826, May 20, 2014]