CVS Caremark Corporation (CVS)

Amendment to Waiver Agreement to Increase Caremark Special Cash Dividend from $2.00 per share to $6.00 per share

     CVS, Caremark and Twain MergerSub L.L.C., a Delaware limited liability company and wholly owned subsidiary of CVS (formerly known as Twain MergerSub Corp.) originally entered into an Agreement and Plan of Merger (the “Merger Agreement”) dated as of November 1, 2006.

     On January 16, 2007, pursuant to a Waiver Agreement between CVS and Caremark (the “Waiver Agreement”), CVS granted Caremark a waiver under the Merger Agreement to permit Caremark to declare and pay, and Caremark agreed that it would declare and pay, a one-time special cash dividend in the amount of $2.00 per outstanding share of Caremark common stock. The Waiver Agreement provided that such dividend would be declared prior to the Caremark stockholder meeting to vote on the merger (to holders of record of Caremark common stock prior to the effective time of the merger), but would only become payable, and such payment would be conditioned, upon the occurrence of the effective time of the merger.

     On February 12, 2007, CVS and Caremark entered into an amendment to the Waiver Agreement (the “Waiver Amendment”) to change the one-time special cash dividend to Caremark stockholders described in the previous paragraph from $2.00 per share to $6.00 per share. Prior to execution of the Waiver Amendment, the CVS board of directors met telephonically to consider the increase to the special cash dividend in consultation with outside legal and financial advisors and in connection therewith received updated financial advisor presentations and opinions as described below. A copy of the press release announcing this change and a copy of the Waiver Amendment are attached hereto as Exhibits 99.1 and 99.2, respectively, and incorporated by reference herein.

     Other than the increase in the size of the one-time special cash dividend to $6.00, the other terms of the Waiver Agreement were not changed. On February 12, 2007, the Caremark board of directors declared the special dividend, the payment of which is conditioned on the completion of the merger. References in the joint proxy statement/prospectus to a $2.00 special cash dividend (or to any adjustments relating to a $2.00 special cash dividend) should now be read by reference to the $6.00 special cash dividend. The Waiver Amendment does not affect the previously announced accelerated share repurchase transaction, which will commence promptly after consummation of the merger.