Express Scripts specializes in Pharmacy Benefit Management in the United States and in Canada. The group focuses particularly on employers, insurers, healthcare organizations, retirement planning and public health programs. The activity principally includes administrative management (management of repayments, patient claim processing, etc.), the distribution of drugs, information on the announcements of decisions and the sale of medical information management services (development of databases). Sales break down by activity as follows:
- distribution of drugs (99%): activity ensured primarily through the company's own network of pharmacies (62.2% of sales) and by mail (35.5%; pharmaceutical service centers);
- services (1%).