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Upjohn Company



W. E. and Henry Upjohn established the Upjohn Pill & Granule Company in 1886; name changed to Upjohn Company in 1902 ... Upjohn merged with Pharmacia AB in November 1995, becoming Pharmacia & Upjohn; known briefly as PNU; in April 2000 Pharmacia and Upjohn merged with Monsanto and Searle, becoming Pharmacia Corp. In 2002 Pfizer Inc. announced plans to buy Pharmacia and they took over April 16, 2003; company now known as Pfizer Inc.

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