A system is provided for processing data including patient identity information and pharmaceutical information. The system permits analysis of the pharmaceutical information to occur while maintaining the confidentiality of the patient identity information. The system includes a server and a data processor. The server stores the data and transmits the data to a data processor. Before transmitting the data, the server replaces the patient identity information with unique generic identification information. The data processor imports the data, including the substituted generic identification information, and analyzes the pharmaceutical information to obtain results. The data processor then exports the results along with the associated generic identification information back to the server. Upon receiving the results, the server supplements the generic identification information with the corresponding patient identity information so that the results are associated with the patient identity information corresponding to the substantive information that is the source of the results. However, the data being processed is not limited to pharmaceutical information. That is, the present invention has applications in numerous fields, such as law, finance or any other field that requires confidentiality.