Whether you have cats or cattle, Zoetis has something to keep them healthy and happy. The company manufactures and sells veterinary medicines such as parasiticides (for fleas, ticks, and worms), anti-infectives, medicated feed additives, vaccines, and other pharmaceuticals. Zoetis boasts more than 300 product lines sold in more than 100 countries around the world, making it one of the world's largest animal health businesses. In addition to medications and vaccines, Zoetis offers diagnostics, genetics, devices, and services such as dairy data management and consulting.