---
kind: "section"
citation: "21 C.F.R. § 524.1448"
title: "21"
number: "524.1448"
heading: "Mirtazapine transdermal ointment."
url: "https://uscodex.org/cfr/21/524.1448"
---

# §524.1448. Mirtazapine transdermal ointment.

- (a) **Specifications.** Each gram of ointment contains 20 milligrams (mg) mirtazapine.
- (b) **Sponsor.** See No. 043264 in [§ 510.600(c)](/cfr/21/510.600.md?p=c) of this chapter.
- (c) **Conditions of use—**
  - (1) **Amount.** Administer topically by applying a 1.5 inch ribbon of ointment (approximately 2 mg) on the inner pinna of the cat's ear once daily for 14 days. Alternate the daily application of ointment between the left and right inner pinna of the ears.
  - (2) **Indications for use.** For body weight gain in cats with a history of weight loss.
  - (3) **Limitations.** Federal law restricts this drug to use by or on the order of a licensed veterinarian.

## Notes

### Amendments

[83 FR 64740, Dec. 18, 2018, as amended at 85 FR 45308, July 28, 2020; 88 FR 16549, Mar. 20, 2023]

### Authority

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

### Source

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

### Amendments

[83 FR 64740, Dec. 18, 2018, as amended at 85 FR 45308, July 28, 2020; 88 FR 16549, Mar. 20, 2023]