CFR > Title 21 - Food and Drugs > CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES > SUBCHAPTER E—ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS (parts 500 to 590) > PART 520—ORAL DOSAGE FORM NEW ANIMAL DRUGS > 520.2380e—Thiabendazole with trichlorfon.

520.2380e—Thiabendazole with trichlorfon.

(a) Specifications. The drug contains 5 grams of thiabendazole with 4.5 grams of trichlorfon, or 20 grams of thiabendazole with 18 grams of trichlorfon.
(b) Sponsor. See No. 017135 in § 510.600(c) of this chapter.
(c) Conditions of use. (1) Used for the treatment and control of bots (Gasterophilus spp. ), large strongyles (Strongylus spp. ), small strongyles (genera Cyathostomum, Cylicobrachytus, Craterostomum, Oesophagodontus, Poteriostomum ), pinworms (Oxyuris spp., Strongyloides spp. ), and ascarids (Parascaris spp. ) in horses.
(2) Administer 2 grams of thiabendazole with 1.8 grams of trichlorfon per 100 pounds of body weight sprinkled on the animals' usual daily ration of feed, or may be mixed in 5 to 10 fluid ounces of water and administered by stomach tube or drench.
(3) Do not re-treat more than once every 30 days, preferably every 6 to 8 weeks.
(4) Do not treat animals if sick or debilitated; less than 4 months of age; or mares in last month of pregnancy.
(5) Do not administer intravenous anesthetics, especially muscle relaxants, within 2 weeks of use.
(6) Not for animals intended for food use.
(7) Do not use within a few days before or after treatment with or exposure to cholinesterase-inhibiting drugs, pesticides, or chemicals.
(8) If the label bears directions for administration of the drug by stomach tube or drench it shall also bear the statement: Caution; Federal law restricts this drug to use by or on the order of a licensed veterinarian.

Code of Federal Regulations

[40 FR 23071, May 28, 1975, as amended at 48 FR 48229, Oct. 18, 1983]