1. A system for creating and using data associated with a product or device, comprising: at least one adverse event database for storing adverse event data associated with a commercially available product or device; processor for accessing and analyzing data from the at least one adverse event database to assist in identifying new essential adverse events associated with the product or device and to assist in identifying at least one new useful characteristic of, or use for, the product or device responsive to identification of at least one new essential adverse event associated with the product or device; adverse event information storage device for storing the new essential adverse event data identified by the processor; user computer for making requests for essential adverse event information to, and for receiving adverse event information from, the processor; and user interface for interfacing the processor and the user computer.