21 CFR §520.1452
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
- (a)Specifications. Each milliliter of gel contains 20 milligrams (2 percent) moxidectin.
- (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. 0.4 milligram moxidectin per kilogram (2.2 pounds) of 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; Cyliocostephanus 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); and horse stomach bots: Gasterophilus intestinalis (2nd and 3rd instars) and G. nasalis (3rd instars). One dose also suppresses strongyle egg production for 84 days.
- (3)Limitations. Do not use in horses intended for human consumption.