For the treatment of nematode & arthropod infestations, due to adult & immature roundworms & bots in horses: Nematodes Large-strongyles: Strongylus vulgaris (adult & arterial larvae), Strongylus edentatus (adult & L4 tissue larval stages), Strongylus equinus (adult & L4 larval stage), Triodontophorus spp. (adult) Small-strongyles: Cyathostomum (adult & non-encysted mucosal larvae): Cylicocyclus spp., Cylicostephanus spp., Gyalocephalus spp., Parascaris: Parascaris equorum (adult & larvae)., Oxyuris: Oxyuris equi (adult & larvae)., Trichostrongylus: Trichostrongylus axei (adult). Dipteran insects: Gasterophilus spp. (larvae). Directions: Single oral administration. 200 µg of ivermectin perkg of bodyweight corresponding to 1 tablet per 100kg bodyweight. To ensure a correct dosage, bodyweight should be determined as accurately as possible. Warning: Do not use in foals under 2 weeks of age.