---
kind: "section"
citation: "21 C.F.R. § 520.82a"
title: "21"
number: "520.82a"
heading: "Aminopropazine."
url: "https://uscodex.org/cfr/21/520.82a"
---

# §520.82a. Aminopropazine.

- (a) **Specifications.** Each tablet contains aminopropazine fumarate equivalent to 25 percent aminopropazine base.
- (b) **Sponsor.** See No. 000061 in [§ 510.600(c)](/cfr/21/510.600.md?p=c) of this chapter.
- (c) **Conditions of use in dogs and cats—**
  - (1) **Amount.** Administer orally at a dosage of 1 to 2 milligrams per pound of body weight, repeated every 12 hours as indicated.
  - (2) **Indications for use.** For reducing excessive smooth muscle contractions, such as occur in urethral spasms associated with urolithiasis.
  - (3) **Limitations.** Federal law restricts this drug to use by or on the order of a licensed veterinarian.

## Notes

### Amendments

[79 FR 28816, May 20, 2014]

### Authority

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

### Source

Source: 40 FR 13838, Mar. 27, 1975, unless otherwise noted.

### Amendments

[79 FR 28816, May 20, 2014]