Zoetis

Zoetis Inc. (/zō-EH-tis/) is an American drug company, the world's largest producer of medicine and vaccinations for pets and livestock. The company was a subsidiary of Pfizer, the world's largest drug maker, but with Pfizer's spinoff of its 83% interest in the firm it is now a completely independent company. The company directly markets its products in approximately 45 countries, and sells them in more than 100 countries. Operations outside the United States accounted for 50% of the total revenue. Contemporaneous with the spinoff in June 2013 S&P Dow Jones Indices announced that Zoetis would replace First Horizon National Corporation in the S&P 500 stock market index.

== History == === 1950s to 2000s === right|thumb|250px|Zoetis building in Exton, PA In the 1950s, Pfizer began research on several drugs, including oxytetracycline, which was found to be effective in livestock. In 1952, the Pfizer Agriculture Division opened a 732-acre research and development facility in Terre Haute, Indiana, called Vigo. By 1988 the division was renamed Pfizer Animal Health.