CFR

520.2362—Thenium closylate tablets.

(a) Chemical name. (N,N-Dimethyl-N-2-phenoxyethyl-N-2′-thenylammo-nium)-p-chlorobenzene-sulfonate.

(b) Specifications. Thenium closylate tablets contain thenium closylate equivalent to 500 milligrams thenium as base in each tablet.

(d) Conditions of use. (1) The tablets are administered orally to dogs as a single day treatment of canine ancylostomiasis by the removal from the intestines of the adult forms of the species Ancylostoma caninum and Uncinaria stenocephala (hookworms). Dogs weighing 10 pounds and over are administered 1 tablet as a single dose. Dogs weighing 5 to 10 pounds are administered one-half tablet twice during a single day. All dosages are given for 1 day only. The treatment should be repeated after 2 or 3 weeks.

(2) Suckling puppies or recently weaned puppies weighing less than 5 pounds should not be treated with the drug. Animals that are severely infected, exhibiting evidence of intestinal hemorrhage, debilitation, and anemia, should be given supportive treatment.

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

Code of Federal Regulations

[40 FR 13838, Mar. 27, 1975, as amended at 41 FR 53477, Dec. 7, 1976; 46 FR 48642, Oct. 2, 1981; 61 FR 8873, Mar. 6, 1996; 62 FR 61625, Nov. 19, 1997]

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