Zoetis™ Files IPO Registration Statement

Zoetis™ Files IPO Registration Statement

Pfizer Inc.

Pfizer Inc. (NYSE: PFE) today announced that its subsidiary, Zoetis™ Inc. (zō-EH-tis), filed a registration statement with the U.S. Securities and Exchange Commission for a potential initial public offering (IPO) of Class A common stock. The offering is expected to represent an ownership stake of up to 20 percent. Prior to completion of the offering, which is targeted for the first half of 2013, Pfizer will transfer its animal health business to Zoetis. The number of shares to be offered and the price range for the offering have not yet been determined.

A registration statement relating to these securities has been filed with the Securities and Exchange Commission but has not yet become effective. These securities may not be sold nor may offers to buy be accepted prior to the time the registration statement becomes effective. This press release shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

J.P. Morgan, BofA Merrill Lynch and Morgan Stanley will act as the joint book-running managers for the proposed IPO. When available, copies of the preliminary prospectus relating to the proposed IPO may be obtained from J.P. Morgan, Attention: Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY 11717, or telephone: 1-866-803-9204; BofA Merrill Lynch, 222 Broadway, 7th Floor, New York, NY 10038, Attn: Prospectus Department, or email: ; or Morgan Stanley, Attention: Prospectus Department, 180 Varick Street, 2nd Floor, New York, NY 10014, or telephone: 1-866-718-1649, or email: .

At Pfizer, we apply science and our global resources to improve health and well-being at every stage of life. We strive to set the standard for quality, safety and value in the discovery, development and manufacturing of medicines for people and animals. Our diversified global health care portfolio includes human and animal biologic and small molecule medicines and vaccines, as well as nutritional products and many of the world’s best-known consumer products. Every day, Pfizer colleagues work across developed and emerging markets to advance wellness, prevention, treatments and cures that challenge the most feared diseases of our time. Consistent with our responsibility as the world’s leading biopharmaceutical company, we also collaborate with health care providers, governments and local communities to support and expand access to reliable, affordable health care around the world. For more than 150 years, Pfizer has worked to make a difference for all who rely on us.

Pfizer Animal Health, a business unit of Pfizer Inc., is a global leader in the discovery, development, manufacture and commercialization of animal health medicines and vaccines, with a focus on both livestock and companion animals. For more than 60 years, we have been committed to enhancing the health of animals and bringing solutions to our customers who raise and care for them.

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