Wormamec is a broad-spectrum worm and bot paste for horses. This product is highly effective in the control and treatment of large and small strongyles (Strongylus and Cyathostomum spp.) including arterial larval stages and benzimidazole resistant strains, bots (Gasterophilus spp.), cutaneous onchocerciasis and other nematodes including Habronema and Draschia spp. which cause skin lesions (summer sores).