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Code of Federal Regulations Title 21. Food and Drugs § 21.558.600 Thiabendazole

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

(a) Specifications. Dry Type A medicated articles containing 22, 44.1, 66.1, or 88.2 percent thiabendazole.

(b) Sponsor. See No. 000010 in § 510.600(c) of this chapter.

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

(d) Special considerations.

(1) The 66.1 percent Type A medicated article is solely for the manufacture of cane molasses liquid Type B feed, which is mixed in dry feeds.

(2) The 88.2 percent Type A medicated article is used solely for the manufacture of an aqueous slurry for adding to a Type C dry cattle feed.

(3) Do not use in Type B or Type C medicated feed containing bentonite.

(e) Conditions of use. It is used in feed for animals as follows:

(1) Swine—

Thiabendazole in grams/ton

Indications for use

Limitations

Sponsor

(i) 45.4 to 908 (0.005 to 0.1 percent)

Swine: As an aid in the prevention of infections of large roundworms (genus Ascaris)

Administer continuously in feed containing 0.05 to 0.1 percent thiabendazole per ton for 2 weeks followed by feed containing 0.005 to 0.02 percent thiabendazole per ton for 8 to 14 weeks. Do not treat animals within 30 days of slaughter

000010

(ii) [Reserved]

(2) Cattle—

Thiabendazole amount

Indications for use

Limitations

Sponsor

(i) 3 grams per 100 lb. body weight

For control of infections of gastrointestinal roundworms (Trichostrongylus spp., Haemonchus spp., Ostertagia spp., Nematodirus spp., Oesophagostomum radiatum)

Use 3 grams per 100 lb. body weight at a single dose; may repeat once in 2 to 3 weeks. Do not treat animals within 3 days of slaughter. Milk taken from treated animals within 96 hours (8 milkings) after the latest treatment must not be used for food

000010

(ii) 5 grams per 100 lb. body weight

For control of severe infections of gastrointestinal roundworms (Trichostrongylus spp., Haemonchus spp., Ostertagia spp., Nematodirus spp., Oesophagostomum radiatum); control of infections of Cooperia spp

Use 5 grams per 100 lb. body weight at a single dose or divided into 3 equal doses, administered 1 dose each day, on succeeding days. May repeat once in 2 to 3 weeks. Do not treat animals within 3 days of slaughter. Milk taken from treated animals within 96 hours (8 milkings) after the latest treatment must not be used for food

000010

(3) Minor species—

Thiabendazole amount

Indications for use

Limitations

Sponsor

(i) 2 grams per 100 lb. body weight

Sheep and goats: For control of infections of gastrointestinal roundworms (Trichostrongylus spp., Haemonchus spp., Ostertagia spp., Cooperia spp.; Nematodirus spp., Bunostomum spp., Strongyloides spp., Chabertia spp., and Oesophagostomum spp.); also active against ova and larvae passed by sheep from 3 hours to 3 days after the feed is consumed (good activity against ova and larvae of T. colubriformis and axei, Ostertagia spp., Nematodirus spp., Strongyloides spp.; less effective against those of Haemonchus contortus and Oesophagostomum spp.)

Use 2 grams per 100 lb. body weight at a single dose. Do not treat animals within 30 days of slaughter. Milk taken from treated animals within 96 hours (8 milkings) after the latest treatment must not be used for food

050604

(ii) 3 grams per 100 lb. body weight

Goats: For control of severe infections of gastrointestinal roundworms (Trichostrongylus spp., Haemonchus spp., Ostertagia spp., Cooperia spp., Nematodirus spp., Bunostomum spp., Strongyloides spp., Chabertia spp., and Oesophagostomum spp.)

Use 3 grams per 100 lb. body weight at a single dose. Do not treat animals within 30 days of slaughter. Milk taken from treated animals within 96 hours (8 milkings) after the latest treatment must not be used for food

050604

(iii) 454 grams per ton of feed

Pheasants: For the treatment of gapeworms (Syngamus trachea)

Feed continuously for 2 weeks (14 days). Do not use treated pheasants for food for 21 days after last day of treatment. Fertility, hatchability, and other reproductive data are not available on use in breeding animals

050604
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Cite this article: FindLaw.com - Code of Federal Regulations Title 21. Food and Drugs § 21.558.600 Thiabendazole - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-21-food-and-drugs/cfr-sect-21-558-600/

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