CMX Caremark RX

Caremark Rx, Inc. (NYSE: CMX) announced today that its Board of Directors has declared a cash dividend amount of $.10 per share for the third quarter of 2006. This is the same dividend that was paid for the second quarter. The cash dividend is payable on October 16, 2006 to stockholders of record on September 29, 2006. 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. The company's clients include corporate health plans, managed care organizations, insurance companies, unions, government agencies and other funded benefit plans. In addition, Caremark is a national provider of drug benefits to eligible beneficiaries under the Medicare Part D program. The company operates a national retail pharmacy network with over 60,000 participating pharmacies, seven mail service pharmacies, the industry's only FDA-regulated repackaging plant and 21 licensed specialty pharmacies for delivery of advanced medications to individuals with chronic or genetic diseases and disorders. Additional information about Caremark is available at www.caremarkrx.com.