---
kind: "section"
citation: "21 C.F.R. § 520.580"
title: "21"
number: "520.580"
heading: "Dichlorophene and toluene."
url: "https://uscodex.org/cfr/21/520.580"
---

# §520.580. Dichlorophene and toluene.

- (a) **Specifications.** Each capsule contains 50 milligrams (mg) of dichlorophene and 60 mg of toluene, or multiples thereof.
- (b) **Sponsors.** See sponsors in [§ 510.600(c)](/cfr/21/510.600.md?p=c) of this chapter for use as in [paragraph (c)](#c) of this section:
  - (1) **Nos.** 017135 and 023851 for use only as a single dose.
  - (2) **Nos.** 000061, 054771, and 069043 for use in a single dose or divided-dosage regimen.
- (c) **Required statement.** Consult your veterinarian for assistance in the diagnosis, treatment, and control of parasitism, and before administering to weak or debilitated animals.
- (d) **Conditions of use—**
  - (1) **Amount.** Administer as follows:
    - (i) **Single dose—** Administer 100 mg of dicholorophene and 120 mg of toluene per pound of body weight.
    - (ii) **Divided dose—** Administer 100 mg of dichlorophene and 120 mg of toluene per 5 pounds of body weight (20 and 24 mg per pound) daily for 6 days.
  - (2) **Indications for use.** For the removal of ascarids (Toxocara canis and Toxascaris leonina) and hookworms (Ancylostoma caninum and Uncinaria stenocephala); and as an aid in removing tapeworms (Taenia pisiformis, Dipylidium caninum, and Echinococcus granulosus) from dogs and cats.
  - (3) **Limitations.** Withhold solid foods and milk for at least 12 hours prior to medication and for 4 hours afterward. Repeat treatment in 2 to 4 weeks in animals subject to reinfection.

## Notes

### Amendments

[45 FR 10332, Feb. 15, 1980]

### Authority

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

### Source

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

### Amendments

[45 FR 10332, Feb. 15, 1980]