Sec Form 4 Filing - RYAN JOHN P @ SCHERING PLOUGH CORP - 2003-10-01

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person RYAN JOHN P 2. Issuer Name and Ticker or Trading Symbol SCHERING PLOUGH CORP [ SGP] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Senior Vice President (Last) (First) (Middle) SCHERING-PLOUGH CORPORATION, 2000 GALLOPING HILL ROAD 3. Date of Earliest Transaction (MM/DD/YY) 10/01/2003 (Street) KENILWORTH, NJ07033 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Shares 12/01/2003 M 15,600 A 65,735.94 ( 2 ) D Common Shares 12/01/2003 F 5,590 D $ 16.63 60,145.94 ( 2 ) D Common Shares 12/22/2003 S 4,300 D $ 16.7 55,845.94 ( 2 ) D Common Shares 12/22/2003 S 2,923 D $ 16.71 52,922.94 ( 2 ) ( 3 ) D Common Shares 3,733.88 I By Trust for Wife ( 4 ) ( 5 ) Common Shares 800 I By Wife ( 4 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Tran saction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Option (right to buy) $ 45.04 10/01/2003 J 106,666 ( 6 ) 09/24/2010 Common Shares 106,666 $ 0 53,334 D Stock Equivalent Units $ 0 ( 7 ) 11/13/2003 D 1,683.32 ( 8 ) ( 9 ) Common Shares 1,683.32 $ 15.9 6.01 ( 10 ) D Deferred Stock Unit Award $ 0 ( 11 ) 12/01/2003 M 15,600 ( 8 ) ( 12 ) Common Shares 15,600 ( 13 ) 31,200 D Option (right to buy) $ 13.97 ( 14 ) 02/25/2006 Common Shares 6,900 6,900 D Option (right to buy) $ 19.81 ( 14 ) 02/23/2007 Common Shares 15,200 15,200 D Option (right to buy) $ 38.13 ( 14 ) 02/22/2008 Common Shares 15,200 15,200 D Option (right to buy) $ 53.06 ( 14 ) 02/21/2009 Common Shares 26,800 26,800 D Option (right to buy) $ 37.75 ( 14 ) 02/21/2010 Common Shares 26,800 26,800 D Option (right to buy) $ 40.05 ( 14 ) 02/25/2011 Common Shares 40,900 40,900 D Option (right to buy) $ 34.68 ( 14 ) 02/24/2012 Common Shares 40,900 40,900 D Option (right to buy) $ 17.85 02/25/2004 02/23/2013 Common Shares 40,900 40,900 D Option (right to buy) $ 17.85 ( 15 ) 02/23/2013 Common Shares 44,600 44,600 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other RYAN JOHN P SCHERING-PLOUGH CORPORATION 2000 GALLOPING HILL ROAD KENILWORTH, NJ07033 Senior Vice President Signatures /s/ Ryan, John P. 12/23/2003 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Not Applicable. ( 2 )Includes 84.77 shares acquired under the Bank of New York Systematic Investment Program for Schering-Plough Corporation Common Stock through November 26, 2003. ( 3 )The reporting person is no longer subject to Section 16 due to his retirement on October 1, 2003. ( 4 )The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose. ( 5 )Shares acquired under Issuer's defined contribution plans. Information based on Plan Statements dated November 26, 2003. ( 6 )53,334 vested from original grant of 160,000 options granted on September 25, 2000; unvested options from original grant forfeited have been deducted from total. ( 7 )1 for 1 ( 8 )Not Applicable. ( 9 )The stock equivalent units were payable in cash following termination of the reporting person's service as an officer of the Issuer. ( 10 )Included 55.07 shares acquired pursuant to a dividend reinvestment feature of the Issuer's Executive Incentive Plan and Profit-Sharing Benefits Equalization Plan, through November 26, 2003. ( 11 )Not Applicable. ( 12 )Not Applicable. ( 13 )Not Applicable. ( 14 )These options are currently exercisable. ( 15 )Options were granted on February 24, 2003 and are exercisable in one-third increments on February 25 of each 2004, 2005 and 2006.

Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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