---
kind: "section"
citation: "21 C.F.R. § 522.150"
title: "21"
number: "522.150"
heading: "Azaperone."
url: "https://uscodex.org/cfr/21/522.150"
---

# §522.150. Azaperone.

- (a) **Specifications.** Each milliliter of solution contains 40 milligrams (mg) azaperone.
- (b) **Sponsor.** See No. 058198 in [§ 510.600(c)](/cfr/21/510.600.md?p=c) of this chapter.
- (c) **Related tolerances.** See [§ 556.68](/cfr/21/556.68.md) of this chapter.
- (d) **Conditions of use—**
  - (1) **Indications for use.** For control of aggressiveness when mixing or regrouping weanling or feeder pigs weighing up to 80 pounds.
  - (2) **Dosage.** 2.2 mg per kilogram (1 mg per pound) by deep intramuscular injection.
  - (3) **Limitations.** Federal law restricts this drug to use by or on the order of a licensed veterinarian.

## Notes

### Amendments

[74 FR 65689, Dec. 11, 2009, as amended at 77 FR 46613, Aug. 6, 2012; 81 FR 48702, July 26, 2016; 84 FR 32992, July 11, 2019]

### Authority

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

### Source

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

### Amendments

[74 FR 65689, Dec. 11, 2009, as amended at 77 FR 46613, Aug. 6, 2012; 81 FR 48702, July 26, 2016; 84 FR 32992, July 11, 2019]