Zoetis Inc. is engaged in the discovery, development, manufacture and commercialization of animal health medicines and vaccines, with a focus on both livestock and companion animals. The Company has a business, commercializing products across eight core species: cattle, swine, poultry, sheep and fish (collectively, livestock) and dogs, cats and horses (collectively, companion animals), and within five product categories: anti-infectives, vaccines, parasiticides, medicated feed additives and other pharmaceuticals. The Company's segments include the United States and International. Within each of these operating segments, it offers a product portfolio for both livestock and companion animal customers. Its livestock products include Ceftiofur injectable line, Draxxin, Spectramast, Bovi-Shield line, Rispoval line, Suvaxyn/Fostera, Embrex devices and Lutalyse. Its companion animal products include Clavamox/Synulox, Convenia, ProHeart, Revolution/Stronghold, Apoquel, Cerenia and Rimadyl.