Adverse Events, Inc (AEI) is a service provider that delivers accurate, real-time information on adverse drug events reported to the FDA. AEI uses a unique data sourcing method called RxFilter, a proprietary, 17-step data refinement process that standardizes and normalizes the data from the FDA’s Adverse Event Reporting System (AERS) into a user-friendly, fully searchable database of over 5,900 approved medications.