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U.S. Department of Health and Human Services

CFR - Code of Federal Regulations Title 21

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The information on this page is current as of April 1 2020.

For the most up-to-date version of CFR Title 21, go to the Electronic Code of Federal Regulations (eCFR).

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Help | More About 21CFR
[Code of Federal Regulations]
[Title 21, Volume 6]
[Revised as of April 1, 2020]
[CITE: 21CFR520.1196]



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

PART 520 -- ORAL DOSAGE FORM NEW ANIMAL DRUGS

Sec. 520.1196 Ivermectin and pyrantel tablets.

(a) Specifications. Each chewable tablet contains either 68 micrograms ([micro]g) of ivermectin and 57 milligrams (mg) of pyrantel (as pamoate salt), or 136 [micro]g and 114 mg, or 272 [micro]g and 227 mg, respectively.

(b) Sponsors. See Nos. 000010, 051311, and 063604 in § 510.600(c) of this chapter.

(c) Conditions of use - (1) Dogs - (i) Amount. Administer a minimum of 6 [micro]g of ivermectin and 5 mg of pyrantel per kilogram (2.72 [micro]g and 2.27 mg per pound) of body weight monthly.

(ii) Indications for use. To prevent canine heartworm disease by eliminating the tissue larval stages of Dirofilaria immitis for up to a month (30 days) after infection and treatment and control of adult ascarids Toxocara canis and Toxascaris leonina, and adult hookworms Ancylostoma caninum, A. braziliense, and Uncinaria stenocephala.

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

(2) [Reserved]

[58 FR 8542, Feb. 16, 1993, as amended at 61 FR 15186, Apr. 5, 1996; 61 FR 59004, Nov. 20, 1996; 62 FR 63270, Nov. 28, 1997; 66 FR 35756, July 9, 2001; 67 FR 21996, May 2, 2002; 68 FR 55823, Sept. 29, 2003; 78 FR 28822, May 20, 2014; 84 FR 39183, Aug. 9, 2019]

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