CYBER RX™ AUTOMATED PRESCRIPTION FORMULARY   The growth of HMO drug preferences has left physicians with a time-consuming and confusing path to drug selection. For each HMO, a "formulary" must be consulted to be sure the drug is approved for use with that patient. The lack of uniformity of formularies created a need for a hand-held device that contained all the formularies, and rules for their use, with updates made automatically. This way, the doctor would only need to learn one system and could be confident that the formulary for each HMO was always current. A complete desktop simulation of the hand-held product was created so it could be demonstrated to HMOs, doctors, and investors. One novel characteristic of this product was that it was possible to put drug company ads on the device to remind doctors of the benefits of one drug over another. This simulation led to formulary programs used in high-volume hand-held PDA devices such as the Palm Pilot®.