---
kind: "section"
citation: "21 C.F.R. § 520.2100"
title: "21"
number: "520.2100"
heading: "Selenium and vitamin E."
url: "https://uscodex.org/cfr/21/520.2100"
---

# §520.2100. Selenium and vitamin E.

- (a) **Specifications.** Each capsule contains:
  - (1) 2.19 milligrams (mg) sodium selenite (equivalent to 1 mg selenium) and 56.2 mg (68 I.U.) vitamin E as d-alpha tocopheryl acid succinate; or
  - (2) 0.548 mg sodium selenite (equivalent to 0.25 mg selenium) and 14 mg (17 I.U.) vitamin E as d-alpha tocopheryl acid succinate.
- (b) **Sponsor.** See No. 000061 in [§ 510.600(c)](/cfr/21/510.600.md?p=c) of this chapter.
- (c) **Conditions of use in dogs—**
  - (1) **Amount.**
    - (i) **Dogs over 20 pounds—** Administer 1 capsule described in [paragraph (a)(1)](#a-1) per 20 pounds of body weight to a maximum of 5 capsules. Repeat at 3 day intervals until a satisfactory therapeutic response is observed. Maintenance dosage is 1 capsule per 40 pounds of body weight every 3 to 7 days, or longer, as required.
    - (ii) **Dogs under 20 pounds—** Administer 1 capsule described in [paragraph (a)(2)](#a-2) per 5 pounds of body weight with a minimum of 1 capsule. Repeat at 3-day intervals until a satisfactory response is observed. Maintenance dosage is 1 capsule per 10 pounds of body weight every 3 to 7 days, or longer, as required.
  - (2) **Indications for use.** As an aid in alleviating and controlling inflammation, pain, and lameness associated with certain arthropathies.
  - (3) **Limitations.** Federal law restricts this drug to use by or on the order of a licensed veterinarian.

## Notes

### Amendments

[79 FR 28828, May 20, 2014]

### Authority

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

### Source

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

### Amendments

[79 FR 28828, May 20, 2014]