520.1638—Oxibendazole paste.
        
        (c) Conditions of use in horses—
        
        (1) Amount.
         For uses other than for threadworms (Strongyloides westeri ), 10 milligrams of oxibendazole per kilogram of body weight; for threadworms (Strongyloides westeri ), 15 milligrams per kilogram.
    
    
        
        (2) Indications for use.
         For removal and control of large strongyles (Strongylus edentatus, S. equinus, S. vulgaris ); small strongyles (genera Cylicostephanus, Cylicocyclus, Cyathostomum, Triodontophorus, Cylicodontophorus, and Gyalocephalus ); large roundworms (Parascaris equorum ); pinworms (Oxyuris equi) including various larval stages; and threadworms (Strongyloides westeri ).
    
    
        
        (3) Limitations.
         Administer orally by syringe. Horses maintained on premises where reinfection is likely to occur should be re-treated in 6 to 8 weeks. Not for use in horses intended for human consumption. Consult a veterinarian for assistance in the diagnosis, treatment, and control of parasitism.