How to Read FDA Adverse Event Reports for Medications

What FAERS is, why large report counts don't automatically mean danger, why "Drug Ineffective" is often the #1 reported event, and how to read each section of a PillSignal drug page.

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What FDA Drug Reports Actually Show

We analyzed every medication in our database — 849 drugs, 78M+ reports. The biggest patterns in the data reveal more about how people report than about which drugs are dangerous.

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How to Report a Drug Side Effect to the FDA

A plain-language walkthrough of MedWatch — who can report, what to gather, and the three ways to file. The data on this site exists because people like you took a few minutes to do this.

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What Is AEMS? The FDA System That Replaced FAERS

In March 2026, the FDA replaced FAERS with a new system called AEMS. What consolidated, what got faster, what stayed exactly the same — and what it means if you're looking up a medication.

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