Caremark Rx to Present at the Credit Suisse First Boston Healthcare Conference

NASHVILLE--(BUSINESS WIRE)--Nov. 15, 2004--Caremark Rx, Inc. (NYSE:CMX) today announced its intention to present at the upcoming Credit Suisse First Boston Healthcare Conference. The presentation is scheduled for Wednesday, November 17, 2004, at the Arizona Biltmore Hotel in Phoenix. An audio presentation will be broadcast live via the Internet. The audio webcast information is as follows:

                  Date: Wednesday, November 17, 2004
                     Time: 9:30 a.m. Mountain Time
                             Webcast Link:
 http://w.on24.com/r.htm?e=9635&s=6&k=76A7B15BA52302676B36AD6E71246DAF

This audio webcast, along with the slide presentation, will be available under the "Events" section of the Investor Relations page at www.caremarkrx.com. The webcast will be archived until December 1, 2004.

About Caremark Rx, Inc.

Caremark Rx, Inc. is a leading pharmaceutical services company, providing through its affiliates comprehensive drug benefit services to over 2,000 health plan sponsors and their plan participants throughout the U.S. Caremark's clients include corporate health plans, managed care organizations, insurance companies, unions, government agencies and other funded benefit plans. The company operates a national retail pharmacy network with over 57,000 participating pharmacies, seven mail service pharmacies, the industry's only FDA-regulated repackaging plant and 21 specialty pharmacies for delivery of advanced medications to individuals with chronic or genetic diseases and disorders.

Additional information about Caremark Rx is available on the World Wide Web at www.caremarkrx.com.