{"data":{"id":"us/21-cfr-520.1872","jurisdiction":"us","citation":"21 CFR 520.1872","heading":"Praziquantel, pyrantel pamoate, and febantel tablets.","body":"(a) Specifications. Each tablet or chewable tablet contains either:\n(1) Tablet No. 1: 22.7 milligrams praziquantel, 22.7 milligrams pyrantel base, and 113.4 milligrams febantel; or\n(2) Tablet No. 2: 68 milligrams praziquantel, 68 milligrams pyrantel base, and 340.2 milligrams febantel.\n(3) Tablet No. 3: 136 milligrams (mg) praziquantel, 136 mg pyrantel base, and 680.4 mg febantel.\n(b) Sponsor. See No. 058198 in § 510.600(c) of this chapter.\n(c) Conditions of use—(1) Dogs—(i) Amount. Administer as a single dose directly by mouth or in a small amount of food as follows:\nWeight of animal Number of tablets per dose\nKilograms Pounds Tablet no. 1 Tablet no. 2 Tablet no. 3\n0.9 to 1.8 2 to 4 1/2\n2.3 to 3.2 5 to 7 1\n3.6 to 5.4 8 to 12 1 1/2\n5.9 to 8.2 13 to 18 2\n8.6 to 11.4 19 to 25 2 1/2\n11.8 to 13.6 26 to 30 1\n14.1 to 20.0 31 to 44 1 1/2\n20.4 to 27.2 45 to 60 2 1\n27.7 to 40.9 61 to 90 1 1/2\n41.3 to 54.5 91 to 120 2\n(ii) Indications for use. For the removal of tapeworms (Dipylidium caninum, Taenia pisiformis, Echinococcus granulosus); hookworms (Ancylostoma caninum, Uncinaria stenocephala); ascarids (Toxocara canis, Toxascaris leonina); and whipworms (Trichuris vulpis) and for the removal and control of tapeworm Echinococcus multilocularis in dogs.\n(iii) Limitations. Federal law restricts this drug to use by or on the order of a licensed veterinarian.\n(2) [Reserved]","path":["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"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-21.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:47Z","sha256":"fa04f09fa5055a0ba35ac56aa16e79a241c7b3b8b7ed72f2fe37ebd152b9c9ea","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-520.1871","next":"us/21-cfr-520.1880"},"notice":"GroundRules: Original legal text. Not legal advice."}