---
kind: "section"
citation: "21 C.F.R. § 520.622c"
title: "21"
number: "520.622c"
heading: "Diethylcarbamazine citrate chewable tablets."
url: "https://uscodex.org/cfr/21/520.622c"
---

# §520.622c. Diethylcarbamazine citrate chewable tablets.

- (a) **Specifications.** Each chewable tablet contains 30, 45, 60, 120, 150, or 180 milligrams of diethylcarbamazine citrate.
- (b) **Sponsors.** See drug listing nos. in [§ 510.600(c)](/cfr/21/510.600.md?p=c) of this chapter for identification of sponsors as follows:
  - (1) [Reserved]
  - (2) **For 054771, use of 60, 120, or 180 milligram tablets as in paragraph (c)(2)(ii) of this section.**
  - (3) **For 061690, use of 45 or 150 milligram tablets as in paragraph (c)(2)(iii) of this section.**
  - (4) **For 061133, use of 60-, 120-, or 180-milligram tablets as in paragraph (c)(2)(i) of this section.**
  - (5) **For 000061, use of 60-milligram tablets as in paragraph (c)(2)(i) of this section.**
  - (6) **For 069043, use of 30, 60, 120, or 180 milligram tablets as in paragraph (c)(2)(i) of this section.**
- (c) **Conditions of use—**
  - (1) **Amount.** 3 milligrams per pound of body weight per day for prevention of heartworm disease and control of ascarids; 25 to 50 milligrams per pound of body weight as an aid in treatment of ascarid infections.
  - (2) **Indications for use.**
    - (i) For prevention of heartworm disease (Dirofilaria immitis) in dogs; as an aid in control of ascarids (Toxocara canis) in dogs; as an aid in treatment of ascarid (Toxocara canis and Toxascaris leonina) infections in dogs and cats.
    - (ii) For prevention of infection with Dirofilaria immitis (heartworm disease) in dogs; as an aid in treatment of ascarid (Toxocara canis and Toxascaris leonina) infections in dogs.
    - (iii) **For prevention of heartworm disease (<I>Dirofilaria immitis</I>) in dogs.**
  - (3) **Limitations.** Federal law restricts this drug to use by or on the order of a licensed veterinarian.

## Notes

### Amendments

[43 FR 6941, Feb. 17, 1978]

### Authority

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

### Source

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

### Amendments

[43 FR 6941, Feb. 17, 1978]