Exhibit 4.5 AMENDMENT NO. 1 TO THE RIGHTS AGREEMENT This Amendment No. 1 (this "Amendment"), dated as of July 12, 2002, between PHARMACIA CORPORATION, a Delaware corporation (the "Company") and MELLON INVESTOR SERVICES LLC, a New Jersey limited...The Rights Agreement • July 16th, 2002 • Pharmacia Corp /De/ • Chemicals & allied products • New York
Contract Type FiledJuly 16th, 2002 Company Industry Jurisdiction