---
kind: "section"
citation: "21 C.F.R. § 522.1468"
title: "21"
number: "522.1468"
heading: "Naproxen for injection."
url: "https://uscodex.org/cfr/21/522.1468"
---

# §522.1468. Naproxen for injection.

- (a) **Specifications.** The drug is a lyophilized powder which is reconstituted with sterile water for injection to form a 10 percent sterile aqueous solution (100 milligrams per milliliter).
- (b) **Sponsor.** See 054771 in [§ 510.600(c)](/cfr/21/510.600.md?p=c) of this chapter.
- (c) **Conditions of use in horses—**
  - (1) **Dosage.** Five milligrams per kilogram of body weight intravenously followed by maintenance oral therapy of 10 milligrams per kilogram of body weight twice daily for up to 14 consecutive days.
  - (2) **Indications for use.** For the relief of inflammation and associated pain and lameness exhibited with arthritis, as well as myositis and other soft tissue diseases of the musculoskeletal system of the horse.
  - (3) **Limitations.** Not for use in horses intended for food. Federal law restricts this drug to use by or on the order of a licensed veterinarian.

## Notes

### Amendments

[46 FR 26763, May 15, 1981. Redesignated and amended at 51 FR 24525, July 7, 1986; 61 FR 5507, Feb. 13, 1996; 79 FR 16192, Mar. 25, 2014]

### Authority

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

### Source

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

### Amendments

[46 FR 26763, May 15, 1981. Redesignated and amended at 51 FR 24525, July 7, 1986; 61 FR 5507, Feb. 13, 1996; 79 FR 16192, Mar. 25, 2014]