---
kind: "section"
citation: "21 C.F.R. § 529.778"
title: "21"
number: "529.778"
heading: "Doxycycline."
url: "https://uscodex.org/cfr/21/529.778"
---

# §529.778. Doxycycline.

- (a) **Specifications.** Doxycycline hyclate solution contains 8.5 percent doxycycline activity. A syringe of N-methyl-2-pyrrolidone and poly (DL-lactide) mixed with a syringe of doxycycline produces 0.5 milliliter of solution.
- (b) **Sponsor.** See 054771 in [§ 510.600(c)](/cfr/21/510.600.md?p=c) of this chapter.
- (c) **Conditions of use in dogs—**
  - (1) **Amount.** Apply subgingivally to periodontal pocket(s) of affected teeth.
  - (2) **Indications for use.** For treatment and control of periodontal disease.
  - (3) **Limitations.** Federal law restricts this drug to use by or on the order of a licensed veterinarian.

## Notes

### Amendments

[79 FR 10973, Feb. 27, 2014]

### Authority

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

### Source

Source: 40 FR 13881, Mar. 27, 1975, unless otherwise noted.

### Amendments

[79 FR 10973, Feb. 27, 2014]