---
kind: "section"
citation: "21 C.F.R. § 522.147"
title: "21"
number: "522.147"
heading: "Atipamezole."
url: "https://uscodex.org/cfr/21/522.147"
---

# §522.147. Atipamezole.

- (a) **Specifications.** Each milliliter of solution contains 5.0 milligrams atipamezole hydrochloride.
- (b) **Sponsors.** See Nos. 015914, 052483, 068504, 069043, and 086101 in [§ 510.600(c)](/cfr/21/510.600.md?p=c) of this chapter.
- (c) **Conditions of use in dogs—**
  - (1) **Amount.** Administer 3,750 mcg/m 2 intramuscularly for the reversal of intravenous dexmedetomidine hydrochloride or medetomidine hydrochloride and 5,000 mcg/m 2 intramuscularly for the reversal of intramuscular dexmedetomidine hydrochloride or medetomidine hydrochloride.
  - (2) **Indications for use.** For the reversal of the sedative and analgesic effects of dexmedetomidine hydrochloride and medetomidine hydrochloride.
  - (3) **Limitations.** Federal law restricts this drug to use by or on the order of a licensed veterinarian.

## Notes

### Amendments

[61 FR 48830, Sept. 17, 1996, as amended at 64 FR 71640, Dec. 22, 1999; 72 FR 264, Jan. 4, 2007; 84 FR 8973, Mar. 13, 2019; 88 FR 84700, Dec. 6, 2023; 89 FR 42357, May 15, 2024; 91 FR 41560, July 7, 2026]

### Authority

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

### Source

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

### Amendments

[61 FR 48830, Sept. 17, 1996, as amended at 64 FR 71640, Dec. 22, 1999; 72 FR 264, Jan. 4, 2007; 84 FR 8973, Mar. 13, 2019; 88 FR 84700, Dec. 6, 2023; 89 FR 42357, May 15, 2024; 91 FR 41560, July 7, 2026]