Regulations last checked for updates: Nov 22, 2024

Title 21 - Food and Drugs last revised: Nov 19, 2024
§ 520.1805 - Piperazine phosphate with thenium closylate tablets.

(a) Specifications. Each scored tablet contains the equivalent of 250 milligrams piperazine hexahydrate (as piperazine phosphate) and 125 milligrams thenium (as thenium closylate) or 500 milligrams piperazine hexahydrate (as piperazine phosphate) and 250 milligrams thenium (as thenium closylate).

(b) Sponsor. See No. 000061 in § 510.600(c) of this chapter.

(c) Conditions of use—(1) Amount. Administer orally to dogs as follows:

Number of Tablets at Each of the Two Doses

Animal weight (lb) 375 mg 750 mg
2 but less than 5 1/2
5 but less than 101 1/2
10 or heavier21

(2) Indications for use. For removal of immature (fourth stage larvae) and adult hookworms (Ancylostoma caninum, A. braziliense, and Uncinaria stenocephala) and ascarids (Toxocara canis) from weaned pups and adult dogs.

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

[43 FR 32747, July 28, 1978, as amended at 47 FR 55476, Dec. 10, 1982; 61 FR 8873, Mar. 6, 1996; 62 FR 61625, Nov. 19, 1997; 78 FR 28826, May 20, 2014]
authority: 21 U.S.C. 360b.
source: 40 FR 13838, Mar. 27, 1975, unless otherwise noted.
cite as: 21 CFR 520.1805