Ivermectin is a member of the macrocyclic lactone family of compounds which have a unique mode of action unrelated to other products used to control parasites of horses in Australia. Controls the following parasites of horses: tapeworms (Anoplocephala perfoliata, A. magna and Paranoplocephala mammillana, adults, immature, heads and segments); large strongyles (Strongylus vulgaris adult and arterial larval stages, S. edentatus adult and tissue stages, S. equinus adults, Tridontophorus sp. adults, and (Craterostomum acuticaudatum adults); small strongyles including benzimidazole resistant strains of adult and immature Cylicocyclus sp., Cylicostephanus sp., Cylicodontophorus sp., Gyalocephalus sp., Coronocyclus sp., Parapoteriostomum sp., Petrovinema sp., Poteriostomum sp., and Cyathostomum sp. (adults); pinworms (Oxyuris equi adult and immature); ascarids (Parascaris equorum adult and immature); hairworms (Trichostrongylus axei adult); large mouthed stomach worms (Habronema muscae adult); neck threadworms (Onchocerca sp., microfilariae); bots (Gasterophilus sp. oral and gastric stages); lungworms (Dictyocaulus arnfieldi adult and immature); intestinal threadworms (Strongyloides westeri adult stage).
Also effective for control of skin lesions caused by Habronema and Draschia sp., cutaneous larvae (summer sores), and Onchocerca sp. microfilariae (cutaneous onchocerciasis).