---
kind: "section"
citation: "21 C.F.R. § 522.144"
title: "21"
number: "522.144"
heading: "Arsenamide."
url: "https://uscodex.org/cfr/21/522.144"
---

# §522.144. Arsenamide.

- (a) **Specifications.** Each milliliter of solution contains 10.0 milligrams arsenamide sodium.
- (b) **Sponsor.** See No. 000010 in [§ 510.600(c)](/cfr/21/510.600.md?p=c) of this chapter.
- (c) **Conditions of use in dogs—**
  - (1) **Amount.** Administer 0.1 milliliter (mL) per pound of body weight (1.0 mL for every 10 pounds) by intravenous injection twice a day for 2 days.
  - (2) **Indications for use.** For the treatment and prevention of canine heartworm disease caused by Dirofilaria immitis.
  - (3) **Limitations.** Federal law restricts this drug to use by or on the order of a licensed veterinarian.

## Notes

### Amendments

[79 FR 16184, Mar. 25, 2014, as amended at 84 FR 39183, Aug. 9, 2019]

### Authority

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

### Source

Source: 40 FR 13858, Mar. 27, 1975, unless otherwise noted.

### Amendments

[79 FR 16184, Mar. 25, 2014, as amended at 84 FR 39183, Aug. 9, 2019]