21 CFR § 520.2098 - Selegiline.

---
identifier: "/us/cfr/t21/s520.2098"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 520.2098 - Selegiline."
title_number: 21
title_name: "Food and Drugs"
section_number: "520.2098"
section_name: "Selegiline."
chapter_name: "FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "E"
subchapter_name: "ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS"
part_number: "520"
part_name: "ORAL DOSAGE FORM NEW ANIMAL DRUGS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "21 U.S.C. 360b."
regulatory_source: "40 FR 13838, Mar. 27, 1975, unless otherwise noted."
cfr_part: "520"
---


# 520.2098 Selegiline.

(a) *Specifications.* Each tablet contains 2, 5, 10, 15, or 30 milligrams (mg) selegiline hydrochloride.

(b) *Sponsor.* See No. 054771 in § 510.600(c) of this chapter.

(c) *Conditions of use in dogs*—(1) *Amounts and indications for use.* (i) Administer 1 mg per kilogram (0.45 mg per pound) of body weight once daily for control of clinical signs associated with uncomplicated pituitary-dependent hyperadrenocorticism in dogs.

(ii) Administer 0.5 to 1.0 mg per kilogram of body weight once daily for the control of clinical signs associated with canine cognitive dysfunction syndrome.

(2) *Limitations.* Federal law restricts this drug to use by or on the order of a licensed veterinarian.

[79 FR 28828, May 20, 2014]