CVS Caremark is a pharmacy benefit management (PBM) company that is part of the larger CVS Health corporation. It provides services to manage prescription drug benefits for employers, health plans, and government programs. By negotiating prices with drug manufacturers and pharmacies, CVS Caremark aims to lower costs for its clients and improve access to medications. In addition to managing drug benefits, CVS Caremark offers various health services, including medication therapy management and specialty pharmacy services. The company focuses on enhancing patient care and ensuring that individuals receive the medications they need in a timely and cost-effective manner.