---
kind: "section"
citation: "21 C.F.R. § 522.1465"
title: "21"
number: "522.1465"
heading: "Naltrexone."
url: "https://uscodex.org/cfr/21/522.1465"
---

# §522.1465. Naltrexone.

- (a) **Specifications.** Each milliliter of solution contains 50 milligrams of naltrexone hydrochloride.
- (b) **Sponsor.** See 053923 in [§ 510.600(c)](/cfr/21/510.600.md?p=c) of this chapter.
- (c) **Conditions of use in elk and moose—**
  - (1) **Amount.** 100 milligrams of naltrexone hydrochloride for each milligram of carfentanil citrate administered. One-quarter of the dose should be administered intravenously and three-quarters of the dose should be administered subcutaneously.
  - (2) **Indications for use.** As an antagonist to carfentanil citrate immobilization in free-ranging or confined elk and moose (Cervidae).
  - (3) **Limitations.** Do not use in domestic food-producing animals. Do not use in free-ranging animals for 45 days before or during hunting season. Federal law restricts this drug to use by or on the order of a licensed veterinarian.

## Notes

### Amendments

[62 FR 5320, Feb. 5, 1997, as amended at 79 FR 16191, Mar. 25, 2014]

### Authority

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

### Source

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

### Amendments

[62 FR 5320, Feb. 5, 1997, as amended at 79 FR 16191, Mar. 25, 2014]