21 CFR § 520.2150 - Stanozolol.

---
identifier: "/us/cfr/t21/s520.2150"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 520.2150 - Stanozolol."
title_number: 21
title_name: "Food and Drugs"
section_number: "520.2150"
section_name: "Stanozolol."
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"
---


# 520.2150 Stanozolol.

(a) *Specifications.* Each tablet or chewable tablet contains 2 milligrams stanozolol.

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

(c) *Conditions of use in dogs and cats*—(1) *Amount*—(i) *Dogs:* Administered orally to small breeds, 
1/2 to 1 tablet twice daily for several weeks; to large breeds, 1 to 2 tablets twice daily for several weeks. The tablets may be crushed and administered in feed.

(ii) *Cats:* Administered orally 
1/2 to 1 tablet twice daily for several weeks.

(2) *Indications for use.* As an anabolic steroid treatment.

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

[79 FR 28828, May 20, 2014]