---
kind: "section"
citation: "21 C.F.R. § 520.2700"
title: "21"
number: "520.2700"
heading: "Verdinexor tablets."
url: "https://uscodex.org/cfr/21/520.2700"
---

# §520.2700. Verdinexor tablets.

- (a) **Specifications.** Each tablet contains 2.5, 10, 22.5, or 50 milligrams (mg) verdinexor.
- (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 verdinexor tablets orally at an initial dose of 1.25 mg per kilogram (mg/kg) of body weight twice per week with at least 72 hours between doses. If tolerated after 2 weeks, increase the dose to 1.5 mg/kg twice per week with at least 72 hours between doses.
  - (2) **Indications for use.** For the treatment of lymphoma in dogs.
  - (3) **Limitations.** Federal law restricts this drug to use by or on the order of a licensed veterinarian. It is a violation of Federal law to use this product other than as directed in the labeling.

## Notes

### Amendments

[91 FR 20342, Apr. 16, 2026, as amended at 91 FR 41560, July 7, 2026]

### Authority

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

### Source

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

### Amendments

[91 FR 20342, Apr. 16, 2026, as amended at 91 FR 41560, July 7, 2026]