<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>3
<FILENAME>dex991.txt
<DESCRIPTION>CERTIFICATION OF THOMAS M. RYAN
<TEXT>
<PAGE>


                                                                   Exhibit 99.1

       Statement Under Oath of Principal Executive Officer Regarding Facts
               and Circumstances Relating to Exchange Act Filings

I, Thomas M. Ryan, Chairman of the Board, President and Chief Executive Officer
of CVS Corporation, state and attest that:

     (1)  To the best of my knowledge, based upon a review of the covered
          reports of CVS Corporation, and, except as corrected or supplemented
          in a subsequent covered report:

          o    no covered report contained an untrue statement of a material
               fact as of the end of the period covered by such report (or in
               the case of a report on Form 8-K or definitive proxy materials,
               as of the date on which it was filed); and

          o    no covered report omitted to state a material fact necessary to
               make the statements in the covered report, in light of the
               circumstances under which they were made, not misleading as of
               the end of the period covered by such report (or in the case of a
               report on Form 8-K or definitive proxy materials, as of the date
               on which it was filed).

     (2)  I have reviewed the contents of this statement with the Company's
          audit committee.

     (3)  In this statement under oath, each of the following, if filed on or
          before the date of this statement, is a "covered report":

          o    Annual Report on Form 10-K for the fiscal year ended December 29,
               2001 of CVS Corporation;

          o    all reports on Form 10-Q, all reports on Form 8-K and all
               definitive proxy materials of CVS Corporation filed with the
               Commission subsequent to the filing of the Form 10-K identified
               above; and

          o    any amendments to any of the foregoing.




/s/ Thomas M. Ryan                       Subscribed and sworn to before me
------------------------------------     this 9th day of August, 2002.
Thomas M. Ryan
Chairman of the Board, President and
   Chief Executive Officer               /s/ Kathleen L. Burt
August 9, 2002                           ------------------------------
                                         Kathleen L. Burt
                                         Notary Public
                                         My Commission Expires: January 22, 2006


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