---
kind: "section"
citation: "21 C.F.R. § 522.2690"
title: "21"
number: "522.2690"
heading: "Zinc gluconate."
url: "https://uscodex.org/cfr/21/522.2690"
---

# §522.2690. Zinc gluconate.

- (a) **Specifications.** Each milliliter of solution contains 13.1 milligrams zinc as zinc gluconate neutralized to pH 7.0 with L-arginine.
- (b) **Sponsor.** See No. 011788 in [§ 510.600(c)](/cfr/21/510.600.md?p=c) of this chapter.
- (c) **Conditions of use in dogs—**
  - (1) **Amount.** The volume injected into each testicle is based on testicular width as determined by measuring each testicle at its widest point using a metric scale (millimeter) caliper.
  - (2) **Indications for use.** Intratesticular injection for chemical sterilization of 3- to 10-month-old male dogs.
  - (3) **Limitations.** Federal law restricts this drug to use by or on the order of a licensed veterinarian.

## Notes

### Amendments

[68 FR 26995, May 19, 2003, as amended at 76 FR 79064, Dec. 21, 2011; 87 FR 76422, Dec. 14, 2022]

### Authority

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

### Source

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

### Amendments

[68 FR 26995, May 19, 2003, as amended at 76 FR 79064, Dec. 21, 2011; 87 FR 76422, Dec. 14, 2022]