CVS/Pharmacy August Same Store Sales Increase 4.9%

CVS Caremark Corporation (NYSE: CVS) today announced that same store sales (sales from retail pharmacy stores open more than one year) in its CVS/pharmacy division for the four weeks ended August 25, 2007 increased 4.9% over the prior year period. Pharmacy same store sales increased 4.0%, and were negatively impacted by approximately 500 basis points due to recent generic introductions. Front-end same store sales increased 6.8%.

Same store sales at CVS/pharmacy for the thirty-four week period increased 6.1% over the prior year period. Pharmacy same store sales increased 6.1%, while front-end same store sales increased 6.3%.

During the four week period ended August 25, 2007, CVS/pharmacy opened 15 new stores, closed 3 stores and relocated 13 others. As of August 25, 2007, the Company operated 6,192 CVS/pharmacy stores in 40 states and the District of Columbia.

About CVS Caremark

CVS Caremark is the largest provider of prescriptions and related healthcare services in the nation. The Company fills or manages more than 1 billion prescriptions annually. Through its unmatched breadth of service offerings, CVS Caremark is transforming the delivery of healthcare services in the U.S. The Company is uniquely positioned to effectively manage costs and improve healthcare outcomes through its approximately 6,200 CVS/pharmacy stores; its pharmacy benefit management, mail order and specialty pharmacy division, Caremark Pharmacy Services; its retail-based health clinic subsidiary, MinuteClinic; and its online pharmacy, CVS.com. General information about CVS Caremark is available through the Investor Relations portion of the Company’s website, at http://investor.cvs.com, as well as through the pressroom portion of the Company’s website, at www.cvs.com/pressroom.