Caremark Rx to Present at the CIBC World Markets Fifteenth Annual Healthcare Conference

NASHVILLE, Tenn.--(BUSINESS WIRE)--Nov. 8, 2004--Caremark Rx, Inc. (NYSE: CMX) today announced its intention to present at the upcoming CIBC World Markets Fifteenth Annual Healthcare Conference. The presentation is scheduled for Wednesday, November 10, 2004, at The Plaza Hotel in New York City. An audio presentation will be broadcast live via the Internet. The audio webcast information is as follows:

                  Date: Wednesday, November 10, 2004
        Webcast - Formal Presentation, 11:00 a.m. Eastern Time:
   http://www.veracast.com/webcasts/cibcwm/healthcare04/24307197.cfm

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 November 24, 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.