Paper Tigers: Adverse Events, HIPAA, & the FDA, Oh My Adverse Events According to FDA requirements, companies must report adverse events reported by patients using their products. Companies fear patients will write about incidents that may or not be related to their product. Nielson Online found that only 1 in 500 messages met the four FDA parameters for submission: The patient can be identified. The reporter of the event can be identified. A specific drug was mentioned. An adverse event or fatal outcome was reported . Pharmaceutical companies are now clearly stating their adverse event policies on social media sites.