---
kind: "section"
citation: "21 C.F.R. § 524.155"
title: "21"
number: "524.155"
heading: "Bacitracin, neomycin, polymyxin B, and hydrocortisone ophthalmic ointment."
url: "https://uscodex.org/cfr/21/524.155"
---

# §524.155. Bacitracin, neomycin, polymyxin B, and hydrocortisone ophthalmic ointment.

- (a) **Specifications.** Each gram of ointment contains 400 units of bacitracin zinc, 5 milligrams (mg) of neomycin sulfate (equivalent to 3.5 mg of neomycin sulfate), 10,000 units of polymyxin B sulfate, and10 mg of hydrocortisone.
- (b) **Sponsors.** See Nos. 000061 and 043264 in [§ 510.600(c)](/cfr/21/510.600.md?p=c) of this chapter.
- (c) **Conditions of use in dogs and cats—**
  - (1) **Amount.** Apply a thin film over the cornea three or four times daily.
  - (2) **Indications for use.** For treating acute or chronic conjunctivitis caused by susceptible organisms.
  - (3) **Limitations.** Federal law restricts this drug to use by or on the order of a licensed veterinarian.

## Notes

### Amendments

[57 FR 37333, Aug. 18, 1992, as amended at 61 FR 8873, Mar. 6, 1996; 62 FR 61626, Nov. 19, 1997; 77 FR 64717, Oct. 23, 2012; 79 FR 10967, Feb. 27, 2014]

### Authority

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

### Source

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

### Amendments

[57 FR 37333, Aug. 18, 1992, as amended at 61 FR 8873, Mar. 6, 1996; 62 FR 61626, Nov. 19, 1997; 77 FR 64717, Oct. 23, 2012; 79 FR 10967, Feb. 27, 2014]