---
kind: "section"
citation: "21 C.F.R. § 524.1662b"
title: "21"
number: "524.1662b"
heading: "Oxytetracycline and polymyxin B ophthalmic ointment."
url: "https://uscodex.org/cfr/21/524.1662b"
---

# §524.1662b. Oxytetracycline and polymyxin B ophthalmic ointment.

- (a) **Specifications.** Each gram of the ointment contains oxytetracycline hydrochloride equivalent to 5 milligrams of oxytetracycline and 10,000 units of polymyxin B sulfate.
- (b) **Sponsor.** See No. 054771 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 topically to the eye two to four times daily.
  - (2) **Indications for use.** For the prophylaxis and local treatment of superficial ocular infections due to oxytetracycline- and polymyxin-sensitive organisms including ocular infections due to streptococci, rickettsiae, E. coli, and A. aerogenes (such as conjunctivitis, keratitis, pinkeye, corneal ulcer, and blepharitis in dogs, cats, cattle, sheep, and horses); ocular infections due to secondary bacterial complications associated with distemper in dogs; and ocular infections due to bacterial inflammatory conditions which may occur secondary to other infectious diseases in dogs, cats, cattle, sheep, and horses.
  - (3) **Limitations.** Federal law restricts this drug to use by or on the order of a licensed veterinarian.

## Notes

### Amendments

[40 FR 13873, Mar. 27, 1975, as amended at 79 FR 10972, Feb. 27, 2014; 88 FR 14901, Mar. 10, 2023]

### Authority

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

### Source

Source: 40 FR 13873, Mar. 27, 1975, unless otherwise noted.

### Amendments

[40 FR 13873, Mar. 27, 1975, as amended at 79 FR 10972, Feb. 27, 2014; 88 FR 14901, Mar. 10, 2023]