The company operates through pharmacy services and pharmacy retail, offering pharmacy benefit management services, prescription management systems, clinical services, and disease management, as well as retail pharmacy network management services, prescription drugs, over-the-counter drugs, beauty products and cosmetics, seasonal merchandise, greeting cards, and convenience foods, and other related services. Caremark provides its services to employers, insurance companies, unions, government employee groups, managed care organizations, and individuals under various names. The company currently operates numerous retail drugstores, health care clinics, onsite pharmacies, retail specialty pharmacy stores, specialty mail order pharmacies, mail service dispensing pharmacies, and branches, as well as centers of excellence for infusion and antral services.