The AMA Prescribing Data (also known as Wolter Kluwers Power Profiler) is a state-of-the art resource for targeting prescribers based on their actual prescribing behavior. Over 140 million new retail Rxs are processed each month and added to a 2.8 billion record history. This information is gathered from more than 35,000 pharmacies nationwide and is data that is used to enhance the AMA physician database. This is a great way to target your audience.