The Adverse Event Reporting System (AERS) is a database designed to support the FDA's post-marketing safety surveillance program for all approved drug and therapeutic biologic products. The ultimate goal of AERS is to improve the public health by providing the best available tools for storing and analyzing safety reports.

FDAble provides the only public search engine for AERS data.
Download Sample AERS Report.
See limitations of interpreting AERS data.

Reference: FDA Web-site.