Skip to main content
Find a Lawyer

Code of Federal Regulations Title 21. Food and Drugs § 21.520.260 n–Butyl chloride

Current as of January 02, 2025 | Updated by Findlaw Staff

(a) Specifications. Each capsule contains 221, 442, 884, or 1,768 milligrams (mg);  or 4.42 grams of n-butyl chloride.

(b) Sponsors. See sponsors in § 510.600(c) of this chapter:

(1) No. 023851 for capsules containing 221, 442, 884, or 1,768 mg, or 4.42 grams (g);  and

(2) No. 054771 for capsules containing 221 mg.

(c) Conditions of use in dogs—

(1) Amount. Administer capsules orally based on body weight as follows:

(i) Capsules containing 221 mg:  Under 5 pounds, 1 capsule per 1 1/4 pounds of body weight.

(ii) Capsules containing 442 mg:  Under 5 pounds, 1 capsule per 2 1/2 pounds of body weight.

(iii) Capsules containing 884 mg:

(A) Under 5 pounds, 1 capsule;

(B) 5 to 10 pounds, 2 capsules;

(C) 10 to 20 pounds, 3 capsules;

(D) 20 to 40 pounds, 4 capsules;

(E) Over 40 pounds, 5 capsules.

(iv) Capsules containing 1,768 mg:  Dogs weighing 5 to 10 pounds, 1 capsule.

(v) Capsules containing 4.42 g:  Dogs weighing 40 pounds or over, 1 capsule.

(2) Indications for use. For the removal of ascarids (Toxocara canis and Toxascaris leonina) and hookworms (Ancylostoma caninum, Ancylostoma braziliense, and Uncinaria stenocephala) from dogs.

(3) Limitations. Dogs should not be fed for 18 to 24 hours before being given the drug. Administration of the drug should be followed in 1/2 to 1 hour with a mild cathartic. Normal feeding may be resumed 4 to 8 hours after treatment. Animals subject to reinfection may be retreated in 2 weeks. A veterinarian should be consulted before using in severely debilitated dogs.

Previous Part of Code Next Part of Code
Back to Chapter List

Cite this article: FindLaw.com - Code of Federal Regulations Title 21. Food and Drugs § 21.520.260 n–Butyl chloride - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-21-food-and-drugs/cfr-sect-21-520-260/

FindLaw Codes may not reflect the most recent version of the law in your jurisdiction. Please verify the status of the code you are researching with the state legislature before relying on it for your legal needs.

Was this helpful?

Welcome to FindLaw's Cases & Codes

A free source of state and federal court opinions, state laws, and the United States Code. For more information about the legal concepts addressed by these cases and statutes, visit FindLaw’s Learn About the Law.

Go to Learn About the Law

Latest Blog Posts

For Legal Professionals

Learn About The Law

Get help with your legal needs

FindLaw’s Learn About the Law features thousands of informational articles to help you understand your options. And if you’re ready to hire an attorney, find one in your area who can help.

Go to Learn About the Law

Need to Find an Attorney?

Search our directory by legal issue

Enter information in one or both fields (Required)

Copied to clipboard