UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              Washington D.C. 20549
                                    FORM 11-K

[X]   ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF
      1934

For the period from January 1, 2002 to July 1, 2002


                                       OR

[ ]   TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT
      OF 1934

For the transition period from              to
                               ------------    --------------

Commission file number   1-2516

            A.    Full title of the plan and the address of the plan, if
                  different from that of issuer named below:

                PHARMACIA CORPORATION SAVINGS AND INVESTMENT PLAN

            B.    Name of issuer of the securities held pursuant to the plan and
                  the address of its principal executive office:

                              PHARMACIA CORPORATION
                               100 Route 206 North
                            Peapack, New Jersey 07977

                PHARMACIA CORPORATION SAVINGS AND INVESTMENT PLAN

                              FINANCIAL STATEMENTS

               FOR THE PERIOD FROM JANUARY 1, 2002 TO JULY 1, 2002

                PHARMACIA CORPORATION SAVINGS AND INVESTMENT PLAN

                              Financial Statements

                                Table of Contents



                                                                                   Page
                                                                                
Report of Independent Accountants                                                     1

Financial Statements:

     Statements of Net Assets Available for Benefits as of July 1, 2002 and
         December 31, 2001                                                            2

     Statement of Changes in Net Assets Available for Benefits for the
         Period From January 1, 2002 to July 1, 2002                                  3

     Notes to Financial Statements                                                    4


       NOTE:   Supplemental schedules required by the Employee Retirement Income
               Security Act of 1974 that have not been included herein are not
               applicable to the Pharmacia Corporation Savings and Investment
               Plan.

                        REPORT OF INDEPENDENT ACCOUNTANTS



To the Participants and Administrator of the
Pharmacia Corporation Savings and Investment Plan

In our opinion, the accompanying statements of net assets available for benefits
and the related statement of changes in net assets available for benefits
present fairly, in all material respects, the net assets available for benefits
of the Pharmacia Corporation Savings and Investment Plan (the "Plan") at July 1,
2002 and December 31, 2001 and the changes in net assets available for benefits
for the period from January 1 to July 1, 2002 in conformity with accounting
principles generally accepted in the United States of America. These financial
statements are the responsibility of the Plan's management; our responsibility
is to express an opinion on these financial statements based on our audits. We
conducted our audits of these statements in accordance with auditing standards
generally accepted in the United States of America, which require that we plan
and perform the audit to obtain reasonable assurance about whether the financial
statements are free of material misstatement. An audit includes examining, on a
test basis, evidence supporting the amounts and disclosures in the financial
statements, assessing the accounting principles used and significant estimates
made by management, and evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

Effective July 1, 2002, the Plan merged with the Pharmacia and Upjohn Employee
Savings Plan to form a new plan named the Pharmacia Savings Plan. Refer to the
notes to the financial statements for additional information.

PricewaterhouseCoopers LLP
December 20, 2002

PHARMACIA CORPORATION SAVINGS AND INVESTMENT PLAN

STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS
JULY 1, 2002 AND DECEMBER 31, 2001
(Dollars in thousands)




                                                                        JULY 1,        DECEMBER 31,
                                                                         2002             2001
                                                                         ----             ----
                                                                                 
ASSETS:

   Investment in the Pharmacia Corporation and Monsanto Company
   Defined Contribution and Employee Stock Ownership Master Trust      $       --      $1,440,081*
                                                                       ----------      ----------
         Total investments                                                     --       1,440,081
                                                                       ----------      ----------

RECEIVABLES:
   Company contributions                                                       --             286
   Participant contributions                                                   --             743
                                                                       ----------      ----------
         Total receivables                                                     --           1,029
                                                                       ----------      ----------

         Total assets                                                          --       1,441,110
                                                                       ----------      ----------

LIABILITIES:
   ESOP debt                                                                   --          31,617
                                                                       ----------      ----------

         Total liabilities                                                     --          31,617
                                                                       ----------      ----------

NET ASSETS AVAILABLE FOR PLAN BENEFITS                                 $       --      $1,409,493
                                                                       ==========      ==========


*Individual investment securities which represent 5% or more of net assets
available for plan benefits.

The above statements should be read in conjunction with the accompanying Notes
to Financial Statements.


                                       2

PHARMACIA CORPORATION SAVINGS AND INVESTMENT PLAN

STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS
FOR THE PERIOD FROM JANUARY 1, 2002 TO JULY 1, 2002
(Dollars in thousands)



                                                                                          PERIOD FROM
                                                                                          JANUARY 1 TO
                                                                                          JULY 1, 2002
                                                                                          ------------
                                                                                       
ADDITIONS:
   Additions to net assets attributed to:
     Investment income (loss):
       Plan Interest in the Pharmacia Corporation and Monsanto Company Defined
          Contribution and Employee Stock Ownership Master Trust Net Investment Loss      $   (92,254)
       Interest on participants' loans                                                            394
                                                                                          -----------

         Total investment loss                                                                (91,860)
                                                                                          -----------

     Contributions:
       Participant                                                                             20,545
       Rollovers                                                                                6,784
       Company                                                                                  2,372
                                                                                          -----------

         Total additions (reductions)                                                         (62,159)
                                                                                          -----------

DEDUCTIONS:
   Deductions from net assets attributed to:
     Benefits paid to participants                                                             90,692
     Plan expenses                                                                              2,384
     Interest expense on ESOP debt                                                              1,013
     Transfer to New Pharmacia Plan                                                         1,253,245
                                                                                          -----------

         Total deductions                                                                   1,347,334
                                                                                          -----------

       Net decrease                                                                        (1,409,493)

NET ASSETS AVAILABLE FOR PLAN BENEFITS:
   Beginning of period                                                                      1,409,493
                                                                                          -----------
   End of period                                                                          $        --
                                                                                          ===========


The above statement should be read in conjunction with the accompanying Notes to
Financial Statements.


                                       3

PHARMACIA CORPORATION SAVINGS AND INVESTMENT PLAN

NOTES TO FINANCIAL STATEMENTS
FOR THE PERIOD FROM JANUARY 1, 2002 TO JULY 1, 2002

1.    Summary of Significant Accounting Policies

      The accompanying financial statements of the Pharmacia Corporation Savings
      and Investment Plan (the "Plan") have been prepared on the accrual basis
      of accounting.

      Fixed income fund investments in guaranteed investment contracts, issued
      by insurance companies, are valued at contract value plus accrued interest
      because these investments have fully benefit-responsive features.
      Investments other than guaranteed investment contracts are stated at fair
      values, which are generally determined by quoted market prices. The value
      of outstanding participant loans is determined based on the outstanding
      principal balance as of the last day of the period, which approximates
      fair value.

      Purchases and sales of securities are recorded on a trade-date basis.
      Dividend income is recorded on the ex-dividend date. Realized gains and
      losses from security transactions are reported on the average cost method.

      The Plan presents in the statement of changes in net assets available for
      benefits, the net appreciation (depreciation) in the fair value of its
      investments which consists of the realized gains and losses and the
      unrealized appreciation (depreciation) on these investments.

      Benefit payments are recorded when paid.

      The Plan pays certain outside service provider expenses (e.g.
      recordkeeping and trustee fees) incurred in the operation of the Plan.
      Investment manager fees are paid by the Plan and are included in
      Administrative Expenses. Certain other expenses are paid by the Company.

      The preparation of financial statements in conformity with accounting
      principles generally accepted in the United States of America requires
      management to make estimates and assumptions that affect the reported
      amounts of assets and liabilities, disclosure of contingent liabilities at
      the date of the financial statements and reported amounts of increases and
      decreases during the reporting period. Actual results could differ from
      those estimates.

      The Plan provides for various investment options in any combination of
      stocks, mutual funds, common/collective trusts, and other investment
      securities. Investment securities are exposed to various risks, such as
      interest rate, market and credit risk. Due to the level of risk associated
      with certain investment securities and the level of uncertainty related to
      changes in the value of investment securities, it is possible that changes
      in risks in the near term would materially affect participants' account
      balances and the amounts reported in the statement of net assets available
      for benefits and the statement of changes in net assets available for
      benefits.

2.    Information Regarding the Plan

      GENERAL
      The following description of the Plan provides only general information.
      Participants should refer to the Plan document for a more complete
      description of the Plan's provisions.

      ADMINISTRATION
      Pharmacia Corporation ("Pharmacia" or the "Company") is the sponsor of the
      Plan. The Global Employee Benefits Oversight Committee and the
      Administrative Committee -- U.S. Plans are responsible for administering
      plan operations in accordance with the Employee Retirement Income Security
      Act of 1974 ("ERISA") plan documents. The Global Benefits Investment
      Committee is responsible for monitoring plan investments.


                                       4

      The Plan is a contributory defined contribution profit sharing plan with
      individual accounts for each participant. Employees are generally eligible
      to participate in the Plan as soon as administratively possible. The cost
      of Plan administration is borne partially by Plan participants and
      partially by Pharmacia (the Plan sponsor). The trustee of the Plan is The
      Northern Trust Company.

      Effective as of July 1, 2001, the account balances of the Plan that were
      allocated to the accounts of certain employees and former employees of
      Monsanto Company were transferred to the Monsanto Company Savings and
      Investment Plan (the "Monsanto SIP"). The allocation of these assets was
      based on the actual participant account balances, by investment fund, as
      of July 1, 2001. All investment income and gains/(losses) through December
      31, 2001, were subsequently allocated based on the actual participant
      account balances, by investment fund, as of December 31, 2001. The assets
      underlying these accounts continued to be held in a master trust serving
      both the Plan and the Monsanto SIP.

      On June 28, 2001, the Global Employee Benefits Oversight Committee
      approved the amendment and restatement of the Pharmacia & Upjohn Employee
      Savings Plan, to be effective July 1, 2002. The Committee also approved
      the merger of the Plan, with and into this new plan, to be named the
      Pharmacia Savings Plan (the "New Pharmacia Plan"), effective July 1, 2002.
      In order to effect this merger, assets and liabilities from the Plan's
      Master Trust representing the Plan's interest and obligations in and under
      the Master Trust were transferred to The New Pharmacia Plan's Master Trust
      and The New Pharmacia Plan's ESOP Trust for Pharmacia Common Stock. The
      New Pharmacia Plan includes the Retirement Choice Program and New
      Investment Options. Under the Retirement Choice program, participants have
      a choice of two retirement benefit options. Option 1 offers additional
      Pension Plan benefits and Option 2 offers additional Savings Plan
      benefits. Participants receive a pension and savings benefit under either
      option and can choose between Options 1 and 2 on an annual basis. In
      addition, the New Pharmacia Plan offers New Investment Options in the form
      of eight core investment funds and four pre-mixed investment funds. The
      eight core investment funds are the Income Fund, the Core Bond Fund, the
      Value Stock Fund, the Large Company Stock Fund, the Growth Stock Fund, the
      Mid-Small Company Stock Fund, the International Stock Fund, and Pharmacia
      Common Stock Fund. The pre-mixed funds are the Conservative Pre-Mixed
      Fund, the Moderate Pre-Mixed Fund, the Moderately Aggressive Pre-Mixed
      Fund and the Aggressive Pre-mixed Fund. These funds offer varying degrees
      of risk and return. They are invested in the Core Bond Fund, the Large
      Company Stock Fund, the Mid-Small Company Stock Fund, and the
      International Stock Fund in predetermined percentages to form the funds.
      All Plan assets were invested in the New Investment Options as of July 1,
      2002.

      As of the date of the Plan's merger with the New Pharmacia Plan,
      participants became 100% vested in their Plan balances.

      PARTICIPANT ACCOUNTS
      Each participant's account is credited with the participant's
      contributions, Company contributions, and Plan earnings/(losses).
      Participants' accounts are valued on a daily basis. The benefit to which a
      participant is entitled is the benefit that can be provided from the
      participant's vested account balance.

      CONTRIBUTIONS AND VESTING
      The Plan provides for voluntary employee contributions generally ranging
      from 1% to 16% of an employee's eligible pay. Employees have an option to
      make before-tax contributions or after-tax contributions. Subject to
      Internal Revenue Service discrimination tests, contributions may be all
      before-tax, all after-tax, or a combination of both. Generally, employee
      contributions to the Plan may be invested in 1% increments and allocated
      in any combination to the following investment fund types: a fixed income
      fund, a balanced fund consisting of both fixed income and equity
      securities, a growth and income equity fund, an international equity fund,
      a growth equity fund, a U.S. equity index fund or the employer stock fund,
      which invests in Pharmacia common stock. In addition, the Plan includes
      four asset allocation funds which allow participants varying degrees of
      risk and return, including (in order of risk tolerance -- least to
      greatest), the Conservative Portfolio Fund, the Moderate Portfolio Fund,
      the Moderately Aggressive Portfolio Fund, and the Aggressive Portfolio
      Fund. Investments in the U.S Equity Index Fund, the Balanced Fund, the
      Growth and Income Equity Fund, the Growth Equity Fund, the Fixed Income
      Fund and the International Equity Fund are used in predetermined mixes to
      form the asset allocation funds. As a result of the spin-off of Solutia,
      Inc., a former subsidiary of the former Monsanto Company, prior to 1998,
      certain participants' accounts received common stock of Solutia. This
      stock is maintained in the


                                       5

      Non-Employer Stock fund and no contributions either employee or employer,
      subsequent to the spinoff can be made to this fund.

      The before-tax option allows participants to elect to make before-tax
      contributions from gross pay before most income taxes are deducted. The
      participants generally cannot withdraw before-tax contributions until age
      59 1/2, retirement, disability, death or termination of employment.
      After-tax contributions are made from participants' pay after income taxes
      are deducted. Withdrawal of after-tax employee contributions can be made
      with no penalty. Participants may change the amounts of their
      contributions and transfer their contributions among the investment
      options. Active participants who are at least age 50 and are fully vested
      may elect to have all or a part of the employer portion of their Pharmacia
      Common Stock Fund accounts sold and the proceeds invested in other
      investment funds (excluding the Non-employer Stock Fund).

      Employee contributions to the Plan, up to a maximum of 7% of eligible pay,
      generally are matched 60% by Pharmacia. In December 2001, Pharmacia made
      discretionary performance contributions of an additional 20% of the first
      10% of eligible pay. Employer contributions and related earnings are
      invested solely in Pharmacia common stock. In part, this is accomplished
      through an Employee Stock Ownership Plan (ESOP) feature added to the Plan
      in October 1991. Dividends paid on Pharmacia common stock are reinvested.
      Prior to the merger of the Plan into the New Pharmacia Plan, Employer
      contributions vested and became non-forfeitable at the rate of 20% per
      year of service, such that employer contributions are 100% vested after
      five years of service. Upon completing five years of participation in the
      Plan, all Employer matched amounts could also be withdrawn. A participant
      who had less than five years of participation in the Plan could not
      withdraw Employer matching contributions received during the last 24
      months and Employer matching contributions that had not vested.

      LEVERAGED ESOP
      In 1991, in connection with the ESOP component, the Plan issued $100
      million in amortizing notes and $100 million in amortizing debentures,
      both guaranteed by Pharmacia (the "Public Debt"), and borrowed $50 million
      from Pharmacia (the "Internal Debt"). In January 1992, the proceeds from
      the borrowings were used to purchase approximately 18.5 million shares of
      common stock from Pharmacia at the average price of $13.40 per share. This
      stock is released for allocation to participant accounts in accordance
      with the terms of the Plan as interest and principal on the borrowings are
      paid. In 1996 and 1997, the Plan borrowed an additional $3.7 million and
      $4.3 million, respectively, from Pharmacia to make payments on existing
      ESOP borrowings.

      Pursuant to an Employee Benefits and Compensation Allocation Agreement,
      effective June 13, 2001, the Plan trust entered into separate Plan
      Separation, Loan, Assignment and Assumption Agreements with Pharmacia and
      Monsanto (the "Separation Agreements"). The Separation Agreements required
      the provision of two separate new loans by Pharmacia and Monsanto to the
      ESOP in order to permit the ESOP to redeem a portion of the remaining
      Public Debt and restructure the remaining Internal Debt. The terms of the
      new and restructured loans and the redemption of the Public Debt were
      negotiated and approved by U.S. Trust Company, N.A., acting as an
      independent fiduciary to the Plan for this purpose.

      Effective July 1, 2001, 54.6% of the unallocated assets held by the ESOP
      were transferred to a new trust established under a new qualified
      retirement plan, the Monsanto Company Savings and Investment Plan (the
      "New Monsanto SIP"). In connection with this transfer, the trust under the
      New Monsanto SIP assumed the Plan's obligations under the new loan held by
      Monsanto. The trust under the New Monsanto SIP also assumed the larger of
      the separate obligations that was created by restructuring the Internal
      Debt, which represents 54.6% of the outstanding June 29, 2001 principal
      balance of the Internal Debt.

      Following are the net assets and significant components of the changes in
      net assets related to the ESOP:


                                       6



                                                                           (DOLLARS IN THOUSANDS)
                                                          JULY 1, 2002                              DECEMBER 31, 2001
                                            -------------------------------------        -------------------------------------
                                            ALLOCATED     UNALLOCATED       TOTAL        ALLOCATED     UNALLOCATED       TOTAL
                                            ---------     -----------       -----        ---------     -----------       -----
                                                                                                     
INVESTMENTS:
  Short-term investment funds               $      --      $      --      $      --      $     913      $      --      $     913
  Pharmacia Common Stock                           --             --             --        243,270         93,427        336,697
                                            ---------      ---------      ---------      ---------      ---------      ---------
      Total investments                            --             --             --        244,183         93,427        337,610
                                            ---------      ---------      ---------      ---------      ---------      ---------

RECEIVABLES:
  Dividends and interest receivable                --             --             --              2              3              5
                                            ---------      ---------      ---------      ---------      ---------      ---------
      Total receivables                            --             --             --              2              3              5
                                            ---------      ---------      ---------      ---------      ---------      ---------

LIABILITIES:
  Accrued Expenses                                 --             --             --             48             --             48
  Notes payable                                    --             --             --             --         31,617         31,617
                                            ---------      ---------      ---------      ---------      ---------      ---------
      Total liabilities                            --             --             --             48         31,617         31,665
                                            ---------      ---------      ---------      ---------      ---------      ---------

NET ASSETS AVAILABLE FOR PLAN BENEFITS      $      --      $      --      $      --      $ 244,137      $  61,813      $ 305,950
                                            =========      =========      =========      =========      =========      =========



                                       7



                                                                   (DOLLARS IN THOUSANDS)
                                                        PERIOD FROM JANUARY 1, 2002 TO JULY 1, 2002
                                                        -------------------------------------------
                                                          ALLOCATED      UNALLOCATED        TOTAL
                                                          ---------      -----------        -----
                                                                                 
ADDITIONS:
  Additions to net assets attributed to:
    Investment income (loss):
       Net depreciation                                   $ (28,843)      $ (10,436)      $ (39,279)
       Interest                                                  28               7              35
       Dividends                                              1,501             573           2,074
                                                          ---------       ---------       ---------
           Total investment loss                            (27,314)         (9,856)        (37,170)

    Company contributions                                        --           2,372           2,372
    Allocation of 195,143 shares of Common Stock for
      Company matching contributions                          8,193              --           8,193
                                                          ---------       ---------       ---------
           Total additions (reductions)                     (19,121)         (7,484)        (26,605)
                                                          ---------       ---------       ---------

DEDUCTIONS:
   Deductions from net assets attributed to:
    Benefits paid to participants                           (14,117)             --         (14,117)
    Plan expenses                                              (103)             --            (103)
    Interest on notes payable                                    --          (1,013)         (1,013)
    Transfers to other investment funds                      (4,962)             --          (4,962)
    Allocation of 195,143 shares of Common stock for
      Company matching contributions                             --          (8,193)         (8,193)
    Asset transfers, net                                   (205,834)        (45,123)       (250,957)
                                                          ---------       ---------       ---------
           Total deductions                                (225,016)        (54,329)       (279,345)
                                                          ---------       ---------       ---------

         Net decrease                                      (244,137)        (61,813)       (305,950)

NET ASSETS AVAILABLE FOR PLAN BENEFITS:
     Beginning of period                                    244,137          61,813         305,950
                                                          ---------       ---------       ---------
     End of period                                        $      --       $      --       $      --
                                                          =========       =========       =========


      As of July 1, 2002 (the plan merger date), all unallocated shares and the
      three outstanding loans were transferred to the New Pharmacia Plan. As of
      July 1, 2002 the outstanding principal balance on the Plan's Public Debt
      was $8,179,080 (carrying an interest rate of 8.13% and maturing on
      December 15, 2006). In addition, the Plan carried two separate internal
      notes payable to Pharmacia. The outstanding principal balance of the first
      note as of July 1, 2002 was $20,071,153 (carrying an interest rate of
      5.71% and maturing on December 15, 2006). The outstanding principal
      balance of the second note as of July 1, 2002 was $353,773 (carrying an
      interest rate of 7.00% and maturing on December 15, 2021). The Plan held
      1,968,630 shares of unallocated Pharmacia Common Stock as of the date of
      plan merger.

      PARTICIPANT LOANS
      Most Plan participants can obtain loans from their accounts. A participant
      can borrow up to the legal limit of 50% of the total vested account
      balance (including the employer-contributed portion of the Pharmacia
      Common Stock Fund account), but not more than $50,000 minus the excess of
      the participant's highest outstanding loan balance during the last 12
      months over the participant's outstanding loan balance on the date the
      loan is made. The minimum loan is $1,000. The interest rates are set
      quarterly and are based on the prime interest rates. Participants can
      establish a loan repayment schedule from 12 to 60 months.


                                       8

3.    Information Regarding the Pharmacia Corporation and Monsanto Company
      Defined Contribution and Employee Stock Ownership Master Trust ("Master
      Trust")

      Effective July 1, 2001, the Master Trust was formed and the assets of the
      Plan were collectively invested with the assets of the Monsanto SIP in the
      Master Trust. Within the Master Trust, each participating plan is entitled
      to a specific interest in the Master Trust's net assets and net
      earnings/(losses). At December 31, 2001 the Plan's specific interests in
      the total net assets of the Master Trust was approximately 49%. Effective
      July 1, 2002, all assets of the Master Trust were transferred out to the
      New Pharmacia Plan and the Monsanto SIP.

      The following table presents the fair values of investments for the Master
      Trust at July 1, 2002 and December 31, 2001:



                                                                (DOLLARS IN THOUSANDS)
                                                               JULY 1,        DECEMBER 31,
                                                                2002             2001
                                                                ----             ----
                                                                        
INVESTMENTS
   Cash and temporary investments                            $        --      $    54,636
   Mellon Daily Liquidity Stock Index Fund                            --          211,308
   Capital Guardian International Equity Fund                         --           83,897
   Debt Securities including U.S. Government securities               --           96,285
   Common stock -- Pharmacia Corporation                              --          934,258
   Common stock -- Solutia Inc.                                       --           22,143
   Common and preferred stock -- other                                --          691,730
   Guaranteed investment contracts                                    --          798,794
   Loans to participants                                              --           25,641
                                                             -----------      -----------

TOTAL INVESTMENTS                                                     --        2,918,692
Investment receivables                                                              2,257
Accrued expenses                                                      --           (1,812)
                                                             -----------      -----------

TOTAL                                                        $        --      $ 2,919,137
                                                             ===========      ===========



                                       9



INVESTMENT INCOME (LOSS)                                           (DOLLARS IN
                                                                    THOUSANDS)
                                                                   PERIOD FROM
                                                                    JANUARY 1,
                                                                      2002 TO
                                                                   JULY 1, 2002
                                                                   ------------
                                                                
Interest                                                             $  29,019
Dividends -- Pharmacia Corporation                                       6,535
Dividends -- other                                                       5,765
Net appreciation (depreciation) in fair value of investments:
   Common stock -- Pharmacia Corporation                              (106,568)
   Common stock -- other                                               (98,589)
   Mutual funds                                                        (30,835)
   Debt securities                                                       1,818
                                                                     ---------

TOTAL NET  INVESTMENT LOSS                                           $(192,855)
                                                                     =========


      Guaranteed Investment Contracts

      Within the Master Trust, the fixed income fund purchases
      benefit-responsive guaranteed investment contracts with various insurance
      companies to provide participants the issuers' commitment to repay
      principal plus resultant earnings. Effective June 1, 2002, the four
      existing separate synthetic guaranteed investment contracts were
      terminated and replaced with a single contract that uses three issuers:
      AEGON, State Street, and JPMorganChase. Effective July 1, 2002, the
      combined synthetic contract was transferred to the Pharmacia Savings Plan.
      The following summarizes the guaranteed investment contracts held within
      the Master Trust as of July 1, 2002 and December 31, 2001:



                                                         (DOLLARS IN THOUSANDS)
                                                             CONTRACT VALUE
GUARANTEED INVESTMENT CONTRACTS                          JULY 1,      DECEMBER 31,
                                                          2002           2001
                                                          ----           ----
                                                                 
AIG FINANCIAL PRODUCTS GROUP
Synthetic Guaranteed Investment Contract                $      --      $ 199,946

PACIFIC MUTUAL GROUP ANNUITY
Synthetic Guaranteed Investment Contract                       --        200,233

JPMORGANCHASE
Synthetic Guaranteed Investment Contract                       --        199,130

AEGON #ADA00233TR
Synthetic Guaranteed Investment Contract                       --        199,485

AEGON #CDA00003TR
Synthetic Guaranteed Investment Contracts Combined             --             --
(AEGON, State Street, and JPMorganChase)
                                                        ---------      ---------
TOTAL                                                   $      --      $ 798,794
                                                        =========      =========


      No gain or loss was realized as a result of the termination of the
      original four contracts on May 31, 2002. The contract value of the new,
      combined contract effective June 1, 2002 was the sum of the contract
      values of the terminated issuers.


                                       10

The rate of return for the synthetic guaranteed investment contracts generally
fluctuates with the return on the underlying assets. The average yields for the
first five months of 2002 and the full year of 2001 were:



                                        PERIOD FROM
                                      JANUARY 1, 2002     FOR THE YEAR ENDED
                                      TO JULY 1, 2002     DECEMBER 31, 2001
                                      ---------------     -----------------
                                                    
AIG Financial Products Group                6.09%                6.10%
Pacific Mutual Group Annuity                6.76%                6.54%
JPMorganChase                               7.32%                6.96%
AEGON #ADA00233TR                           6.03%                6.41%
                                            ----                 ----


      The interest rates as of July 1, 2002 and December 31, 2001 were:



                                        JULY 1, 2002       DECEMBER 31, 2001
                                        ------------       -----------------
                                                     
AIG Financial Products Group                      --                   6.01%
Pacific Mutual Group Annuity                      --                   6.93%
JPMorganChase                                     --                   7.50%
AEGON #ADA00233TR                                 --                   6.98%
AEGON #CDA00003TR                              6.46%                      --
                                               ----                    -----


      Upon appropriate notification to the insurance company, the synthetic and
      separate account guaranteed investment contracts may be terminated.

      The Plan values these guaranteed investment contracts at contract value
      plus accrued interest. The total estimated fair value of guaranteed
      investment contracts was $824 million as of December 31, 2001. Fair values
      were estimated using appropriate valuation techniques based on information
      available as of December 31, 2001. The fair value estimates are not
      necessarily indicative of values the Plan could realize in the current
      market.

      The above-mentioned guaranteed investment contracts, Pharmacia Corporation
      common stock, and shares of the Mellon Daily Liquidity Stock Index Fund,
      represent the only investments of the Plan which were individually greater
      than 5% of the Plan's net assets.

      Nonparticipant-Directed Investments

      Except for a portion of the employer stock fund, all other funds in the
      Master Trust are participant directed. Information about the net assets
      and the significant components of the changes in net assets relating to
      the nonparticipant-directed investment amounts as of July 1, 2002 and
      December 31, 2001are presented below:



                                                (DOLLARS IN THOUSANDS)

                                               JULY 1,      DECEMBER 31,
                                                2002           2001
                                                ----           ----
                                                      
NET ASSETS
   Cash and temporary investments             $      --      $      14
   Common stock -- Pharmacia Corporation             --        830,595
                                              ---------      ---------
   TOTAL ASSETS                                      --        830,609

   Accrued expenses                                  --            113
   ESOP debt                                         --         69,316
                                              ---------      ---------
   TOTAL LIABILITIES                                 --         69,429
                                              ---------      ---------
NET ASSETS                                    $      --      $ 761,180
                                              =========      =========



                                       11



                                                       (DOLLARS IN
                                                        THOUSANDS)

                                                       PERIOD FROM
                                                        JANUARY 1,
                                                         2002 TO
                                                       JULY 1, 2002
                                                       ------------
                                                    
CHANGES IN NET ASSETS:
   Contributions                                         $    4,792
   Loan payments                                                 14
   Interest                                                     149
   Dividends                                                  5,127
   Net depreciation                                         (94,597)
   Benefit payments                                         (27,951)
   Interest on ESOP debt                                     (2,089)
   Interfund transfers                                      (15,100)
   Asset transfers, net to New Pharmacia Plan              (250,957)
   Asset transfers, net to Monsanto SIP Plan               (380,568)
                                                         ----------
TOTAL                                                    $ (761,180)
                                                         ==========


4.    Information Regarding Tax Status

      Pharmacia has received a determination letter dated May 21, 2001 from the
      Internal Revenue Service (IRS) indicating that the Plan was in compliance
      with the applicable requirements of the Internal Revenue Code.

5.    Transfer to New Pharmacia Plan

      Effective July 1, 2002, the Plan's net assets were transferred to the New
      Pharmacia Plan. Forfeited non-vested accounts totaling $1.4 million were
      included within the $1.3 billion transferred out to the New Pharmacia
      Plan.

6.    Related-Party Transactions

      For the period from January 1, 2002 to July 1, 2002, the Master Trust
      purchased 1,320,484 shares of Pharmacia Common Stock with a fair market
      value of $54,406,128 and sold 2,006,864 shares for proceeds of
      $84,001,820, resulting in a gain of $8,180,378. At December 31, 2001 the
      Plan owned 21,905,232 shares of Pharmacia common stock at a cost of
      $539,515,734. In addition, funds are invested in a short-term investment
      fund managed by The Northern Trust Company, the trustee for the Master
      Trust and the Plan. At December 31, 2001 the fair value of the Northern
      Trust Company short-term investment account was $33,466,247. For the
      period January 1, 2002 to July 1, 2002, the Master Trust purchased
      short-term investment funds with a fair market value of $318,269,961 and
      sold short-term investment funds for proceeds of $327,272,556.

7.    Subsequent Event

      Effective July 15, 2002, Pharmacia Corporation and Pfizer Inc. announced
      that they had signed a definitive agreement for Pfizer Inc. to acquire
      Pharmacia Corporation in a stock-for-stock transaction, which is expected
      to close once the appropriate shareholder and regulatory approval have
      been received.

                                   * * * * * *


                                       12

                            Pharmacia Corporation
                                Exhibit Index



NUMBER       DESCRIPTION
-------      ------------
          

23.1         Consent of Independent Accountants, PricewaterhouseCoopers LLP





                                    SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the
trustees (or other persons who administer the employee benefit plan) have duly
caused this annual report to be signed on its behalf by the undersigned hereunto
duly authorized.

                               PHARMACIA CORPORATION SAVINGS AND INVESTMENT PLAN


                                         By:  /s/
                                         ---------------------------------------
                                         Robert G. Thompson
                                         Pharmacia Corporation
                                         Senior Vice President and Controller


December 20, 2002