About Reported Reactions
Reported Reactions is an independent public-data reference site. It counts the adverse event reports that the U.S. Food and Drug Administration has received about human drugs and biologics (20,646,523 reports in FAERS since 2004) and about medical devices (26,136,888 reports in MAUDE) and presents them by drug name, pharmacologic class, device brand, device type, manufacturer, reaction term and month. It is not affiliated with FDA, with any manufacturer, or with any clinical practice.
What it is for
FDA publishes these reports as bulk files and an interface built for programmers. A patient who wants to know what has been reported about a medication or an implant, a pharmacist who wants the reporting history of a product, or a researcher who wants the trend for a reaction term has no simple way to look. This site does the counting and sets each number beside the context needed to read it: the pharmacologic class, the whole database, the trend, and FDA's own statement of what the data cannot show.
What it leaves out
- Conclusions. The site does not say that a product produced any event, does not rate products and does not rank them by outcome. FDA states that a causal relationship cannot be established from a report and that the data are not an indicator of a product's safety profile; the pages repeat that wherever products appear side by side.
- Advice. Nothing here says what to take, how much, or whether to stop. Those are questions for a pharmacist or clinician who knows the patient.
- People. No report narrative, patient detail, reporter identity or manufacturer contact name is read or published. Product and manufacturer names that read as a person's name are excluded.
- Rankings of harm. Tables that list several products are ordered by count for navigation and carry FDA's statement on comparing products.
Funding
The site is free to use and funded by advertising that is clearly labelled. Advertisers have no influence over which products appear or how their reports are presented, no advertising is placed inside the caveat block, and the site carries no affiliate links for any health product.
Updates and corrections
The site is rebuilt daily and picks up each openFDA release (FAERS quarterly, MAUDE monthly) as it appears. FDA's record is authoritative. Manufacturers and anyone else who finds a processing error can use the corrections channel; see the methodology for how counts are made.
Contact: contact page.