Pharmacia Corporation develops, manufactures, and markets prescription pharmaceutical products and services. It is focused on primary care, hospital care, cancer care, ophthalmology, and endocrine care products. It also operates in business functions such as consumer health care, animal health, diagnostics, contract manufacturing, and bulk chemical sales. Pharmacia Corporation delivers its products to pharmacies, hospitals, chain warehouses, governments, physicians, wholesalers, and other distributors. Pharmacia Corporation was founded in 1901 and is based in Kalamazoo, Michigan. It has branches in Illinois, Missouri, California, Sweden, Italy, Belgium, Japan, and Puerto Rico. As of April 16, 2003, Pharmacia Corporation operates as a subsidiary of Pfizer Inc.