Dr. Doug Bierer felt like he was in a courtroom, waiting for the jury to render its verdict. It was June 2002, and executives from Procter & Gamble and its partner AstraZeneca had just finished presenting their bid to FDA's Non-Prescription Drugs Advisory Committee (NDAC) to market the popular heartburn medication, Prilosec (omeprazole), as an over-the-counter (OTC) drug.