Vetrimec Ivermectin Paste 1.87% (apple flavor) provides effective treatment and control of the following parasites in horses. Large Strongyles (adults) - Strongylus vulgaris (also early forms in blood vessels), S. edentatus (also tissue stages), S. equinus, Triodontophorus spp. including T. brevicauda and T. serratus, and Craterostomum acuticaudatum; Small Strongyles (adults, including those resistant to some benzimidazole class compounds) - Coronocyclus spp. including C. coronatus, C. labiatus and C. labratus; Cyathostomum spp. including C. catinatum and C. pateratum; Cylicocyclus spp. including C. insigne, C. leptostomum, C. nassatus and C. brevicapsulatus; Cylicodontophorus spp., Cylicostephanus spp. including C. calicatus, C. goldi, C. longibursatus and C. minutus, and Petrovinema poculatum; Small Strongyles - Fourth-stage larvae; Pinworms (adults and fourth-stage larvae) - Oxyuris equi; Ascarids (adult and third- and fourth-stage larvae) - Parascaris equorum; Hairworms (adults) - Trichostrongylus axei; Large-mouth Stomach Worms (adults) - Habronema muscae; Bots (oral and gastric stages) - Gasterophilus spp. including G. intestinalis and G. nasalis; Lungworms (adults and fourth-stage larvae) - Dictyocaulus arnfieldi; Intestinal Threadworms (adults) - Strongyloides westeri; Summer Sores caused by Habronema and Draschia spp. cutaneous third-stage larvae; Dermatitis caused by neck threadworm microfilariae Onchocerca sp. See package insert for complete product details.