{"data":{"id":"us/21-cfr-520.38a","jurisdiction":"us","citation":"21 CFR 520.38a","heading":"a Albendazole suspension.","body":"(a) Specifications. Each milliliter of suspension contains 45.5 milligrams (mg) (4.55 percent) or 113.6 mg (11.36 percent) albendazole.\n(b) Sponsor. See No. 054771 in § 510.600 of this chapter.\n(c) Related tolerances. See § 556.34 of this chapter.\n(d) Special considerations. See § 500.25 of this chapter.\n(e) Conditions of use—(1) Cattle. Administer 11.36 percent suspension:\n(i) Amount. 4.54 mg/pound (lb) body weight (10 mg/kilogram (kg)) as a single oral dose using dosing gun or dosing syringe.\n(ii) Indications for use. For removal and control of adult liver flukes (Fasciola hepatica); heads and segments of tapeworms (Moniezia benedeni and M. expansa); adult and 4th stage larvae of stomach worms (brown stomach worms including 4th stage inhibited larvae (Ostertagia ostertagi), barberpole worm (Haemonchus contortus and H. placei), small stomach worm (Trichostrongylus axei)); adult and 4th stage larvae of intestinal worms (thread-necked intestinal worm (Nematodirus spathiger and N. helvetianus), small intestinal worm (Cooperia punctata and C. oncophora)); adult stages of intestinal worms (hookworm (Bunostomum phlebotomum), bankrupt worm (Trichostrongylus colubriformis), nodular worm (Oesophagostomum radiatum)); adult and 4th stage larvae of lungworms (Dictyocaulus viviparus).\n(iii) Limitations. Do not slaughter within 27 days of last treatment. Do not use in female dairy cattle of breeding age: Do not administer to female cattle during first 45 days of pregnancy or for 45 days after removal of bulls.\n(2) Sheep. Administer 4.45 or 11.36 percent suspension:\n(i) Amount. 3.4 mg/lb body weight (7.5 mg/kg) as a single oral dose using dosing gun or dosing syringe.\n(ii) Indications for use. For removal and control of adult liver flukes (Fasciola hepatica and Fascioloides magna); heads and segments of common tapeworms (Moniezia expansa) and fringed tapeworm (Thysanosoma actinioides); adult and fourth stage larvae of stomach worms (brown stomach worm (Ostertagia circumcinta and Marshallagia marshalli), barberpole worm (Haemonchus contortus), small stomach worm (Trichostrongylus axei)); adult and fourth stage larvae of intestinal worms (thread-necked intestinal worm (Nematodirus spathiger and N. filicollis), Cooper's worm (Cooperia oncophora), bankrupt worm (Trichostrongylus colubriformis), nodular worm (Oesophagostomum columbianum), and large-mouth bowel worm (Chabertia ovina)); adult and larval stages of lungworms (Dictyocaulus filaria).\n(iii) Limitations. Do not slaughter within 7 days of last treatment. Do not administer to ewes during first 30 days of pregnancy or for 30 days after removal of rams.\n(3) Goats. Administer 11.36 percent suspension:\n(i) Amount. 4.54 mg/lb body weight (10 mg/kg) as a single oral dose using dosing gun or dosing syringe.\n(ii) Indications for use. For the treatment of adult liver flukes (Fasciola hepatica) in nonlactating goats.\n(iii) Limitations. Do not slaughter within 7 days of last treatment. Do not administer to does during the first 30 days of pregnancy or for 30 days after removal of bucks.","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":"d393d59cda07c4659a01bfcfcba45863a8a0d0ec74a55d8783d45d230be42f41","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-520.38","next":"us/21-cfr-520.38b"},"notice":"GroundRules: Original legal text. Not legal advice."}