---
kind: "section"
citation: "21 C.F.R. § 520.2598"
title: "21"
number: "520.2598"
heading: "Trilostane."
url: "https://uscodex.org/cfr/21/520.2598"
---

# §520.2598. Trilostane.

- (a) **Specifications.** Each capsule contains 5, 10, 20, 30, 60, or 120 milligrams (mg) trilostane.
- (b) **Sponsor.** See No. 043264 in [§ 510.600](/cfr/21/510.600.md) of this chapter.
- (c) **Conditions of use in dogs—**
  - (1) **Amount.** The starting dose is 1.0 to 3.0 milligrams per pound (2.2 to 6.7 milligrams per kilogram) once a day.
  - (2) **Indications for use.** For the treatment of pituitary-dependent and adrenal-dependent hyperadrenocorticism in dogs.
  - (3) **Limitations.** Federal law restricts this drug to use by or on the order of a licensed veterinarian.

## Notes

### Amendments

[74 FR 21767, May 11, 2009, as amended at 74 FR 30464, June 26, 2009; 80 FR 53460, Sept. 4, 2015; 87 FR 58962, Sept. 29, 2022; 89 FR 85426, Oct. 28, 2024]

### Authority

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

### Source

Source: 40 FR 13838, Mar. 27, 1975, unless otherwise noted.

### Amendments

[74 FR 21767, May 11, 2009, as amended at 74 FR 30464, June 26, 2009; 80 FR 53460, Sept. 4, 2015; 87 FR 58962, Sept. 29, 2022; 89 FR 85426, Oct. 28, 2024]