Pfizer Inc. (inatamkwa /ˈfaɪzər/) ni kampuni ya madawa ya Marekani yenye makao makuu New York City na makao makuu ya utafiti Groton, Connecticut. Pfizer ni kati ya kampuni kubwa za madawa duniani. Imeorodheshwa katika Soko la Hisa la New York. Wells, John C. (2008), Longman Pronunciation Dictionary (3rd ed.), Longman, ISBN 9781405881180  "Pfizer moves higher amid persistent breakup talk", Bloomberg Businessweek, 27 March 2012. Retrieved on 8 July 2012.  Tovuti rasmi