Federal regulations · Through 2026-08-25 · Newer source version available

21 CFR 520.1453: Moxidectin and praziquantel gel.

(a) Specifications. Each milliliter of gel contains 20 milligrams (mg) (2.0 percent) moxidectin and 125 mg (12.5 percent) praziquantel.
(b) Sponsor. See No. 054771 in § 510.600(c) of this chapter.
(c) Special considerations. See § 500.25 of this chapter.
(d) Conditions of use in horses and ponies—(1) Amount. Administer by mouth as a single dose: 0.4 mg moxidectin per kilogram and 2.5 mg praziquantel per kilogram (2.2 pounds) body weight.
(2) Indications for use. For the treatment and control of large strongyles: Strongylus vulgaris (adults and L4/L5 arterial stages), S. edentatus (adult and tissue stages), Triodontophorus brevicauda (adults), and T. serratus (adults); small strongyles (adults): (Cyathostomum spp., including C. catinatum and C. pateratum; Cylicocyclus spp., including C. insigne, C. leptostomum, C. nassatus, and C. radiatus; Cylicostephanus spp., including C. calicatus, C. goldi, C. longibursatus, and C. minutus; Coronocyclus spp., including C. coronatus, C. labiatus, and C. labratus; Gyalocephalus capitatus; and Petrovinema poculatus; small strongyles: undifferentiated lumenal larvae; encysted cyathostomes (late L3 and L4 mucosal cyathostome larvae); ascarids: Parascaris equorum (adults and L4 larval stages); pinworms: Oxyuris equi (adults and L4 larval stages); hairworms: Trichostrongylus axei (adults); large-mouth stomach worms: Habronema muscae (adults); horse stomach bots: Gasterophilus intestinalis (2nd and 3rd instars) and G. nasalis (3rd instars); and tapeworms: Anoplocephala perfoliata (adults). One dose also suppresses strongyle egg production for 84 days.
(3) Limitations. Do not use in horses intended for human consumption.

Where this section sits in the code

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

(a) Specifications. Each milliliter of gel contains 20 milligrams (mg) (2.0 percent) moxidectin and 125 mg (12.5 percent) praziquantel.

(b) Sponsor. See No. 054771 in § 510.600(c) of this chapter.

(d) Conditions of use in horses and ponies—(1) Amount. Administer by mouth as a single dose: 0.4 mg moxidectin per kilogram and 2.5 mg praziquantel per kilogram (2.2 pounds) body weight.

(2) Indications for use. For the treatment and control of large strongyles: Strongylus vulgaris (adults and L4/L5 arterial stages), S. edentatus (adult and tissue stages), Triodontophorus brevicauda (adults), and T. serratus (adults); small strongyles (adults): (Cyathostomum spp., including C. catinatum and C. pateratum; Cylicocyclus spp., including C. insigne, C. leptostomum, C. nassatus, and C. radiatus; Cylicostephanus spp., including C. calicatus, C. goldi, C. longibursatus, and C. minutus; Coronocyclus spp., including C. coronatus, C. labiatus, and C. labratus; Gyalocephalus capitatus; and Petrovinema poculatus; small strongyles: undifferentiated lumenal larvae; encysted cyathostomes (late L3 and L4 mucosal cyathostome larvae); ascarids: Parascaris equorum (adults and L4 larval stages); pinworms: Oxyuris equi (adults and L4 larval stages); hairworms: Trichostrongylus axei (adults); large-mouth stomach worms: Habronema muscae (adults); horse stomach bots: Gasterophilus intestinalis (2nd and 3rd instars) and G. nasalis (3rd instars); and tapeworms: Anoplocephala perfoliata (adults). One dose also suppresses strongyle egg production for 84 days.

(3) Limitations. Do not use in horses intended for human consumption.

Collected 2026-08-27T02:24:47Z. Source file · JSON

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