Expel Yellow Tube All Wormer Paste is an excellent broad spectrum treatment for horses. It is a wonderful treatment that safely eliminates large strongyles, small strongyles, ascarids, pinworms, hairworms, large mouthed stomach worms, threadworms, lungworms, bots, and tapeworm infestation. Moreover, it is also effective in controlling skin lesions caused by Habronema and Draschia spp. Cutaneous larvae (summer sores). Besides, this wormer paste treatment is safe for use in foals, yearlings, breeding stallions, and pregnant mares.