Oxibendazole is a broad-spectrum anthelmintic Target: AntiparasiticOxibendazole is a benzimidazole drug that is used to protect against roundworms, strongyles, threadworms, pinworms and lungworm infestations in horses and some domestic pets. It is usually white to yellowish in appearance, and may take the form of a powder or a tablet. From Wikipedia.
References:
[1]. http://en.wikipedia.org/wiki/Oxibendazole