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The largest manufacturing site in the Pfizer network is located in Kalamazoo, Michigan. This 1,300 acre facility manufactures active pharmaceutical ingredients (API), drug products (DP) and medical devices.

Each year, the API facility in Kalamazoo produces 1,200 metric tons of ingredients through fermentation bioprocessing, custom ingredients synthesis and biologic antibody production. In addition, the DP organization ships 140 million units of life-saving medicine of both sterile injectables and liquid/semi-solids. The facility also produces one medical device, which is used as a hemostat in surgery.

Kalamazoo ships API, DP and medical devices to 113 countries around the world, helping millions of patients each year.