Skip to main content
Find a Lawyer

Code of Federal Regulations Title 21. Food and Drugs § 21.520.2380a Thiabendazole top dressing and mineral protein block

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

(a) Specifications. Conforms to N.F. XII.

(b) Sponsors. See sponsors in § 510.600(c) of this chapter for use as in paragraph (d) of this section.

(1) [Reserved by 83 FR 48946]

(2) No. 000010 for use as in paragraph (d)(1)(ii) of this section.

(3) No. 012286 for use as in paragraph (d)(2) of this section.

(c) Related tolerances. See § 556.730 of this chapter.

(d) Conditions of use. It is used as follows:

(1) Horses—

(i) [Reserved by 83 FR 48946]

(ii) Route of administration. In feed.

(a) Amount. 2 grams per 100 pounds of body weight.

(1) Indications for use. For control of large and small strongyles, Strongyloides, and pinworms of the genera Strongylus, Cyathostomum, Cylicobrachytus and related genera, Craterostomum, Oesophagodontus, Poteriostomum, Oxyuris, and Strongyloides.

(2) Limitations. Administer in a single dosage mixed with the normal grain ration given at one feeding. Warning:  Not for use in horses intended for food.

(b) Amount. 4 grams per 100 pounds of body weight.

(1) Indications for use. For control of ascarids of the genus Parascaris.

(2) Limitations. Administer in a single dosage mixed with the normal grain ration given at one feeding. Warning:  Not for use in horses intended for food.

(2) Cattle—

(i) Route of administration. In feed block.

(ii) Amount. 3.3 percent block consumed at the recommended level of 0.11 pound per 100 pounds of body weight per day.

(iii) Indications for use. For control of infections of gastrointestinal roundworms (Trichostrongylus, Haemonchus, Ostertagia and Cooperia).

(iv) Limitations. Administer to cattle on pasture or range accustomed to mineral protein block feeding for 3 days. Milk taken from animals during treatment and within 96 hours (8 milkings) after the latest treatment must not be used for food. Do not treat cattle within 3 days of slaughter. For a satisfactory diagnosis, a microscopic fecal examination should be performed by a veterinarian or diagnostic laboratory prior to worming. Animals maintained under conditions of constant worm exposure may require re-treatment within 2 to 3 weeks. Animals that are severely parasitized, sick, or off feed should be isolated and a veterinarian consulted for advice concerning treatment.

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 § 21.520.2380a Thiabendazole top dressing and mineral protein block - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-21-food-and-drugs/cfr-sect-21-520-2380a/

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