What is PillSignal?
PillSignal makes FDA adverse event data easy to explore. When people experience unexpected reactions while taking a medication, they — or their doctors — can report it to the FDA through the Adverse Event Monitoring System (AEMS). These reports are publicly available, but buried in a database most people have never heard of.
PillSignal surfaces that data in plain language: how many reports exist for a drug, what events were reported, who reported them, and how the numbers have changed over time.
This is real-world data from real patients — different from drug label information, and often more reflective of everyday experience.
What you'll find on each drug page
Reported events
The most frequently reported adverse events for the drug, ranked by how often they appear in FDA reports.
Demographics
Breakdown of who is filing reports — by age group and sex — giving context to the reporting population.
Outcome severity
How serious the reported outcomes were: hospitalization, life-threatening events, disability, and more.
Trends over time
Quarterly report volume going back years, showing whether reporting has increased, decreased, or stayed steady.
New to FDA adverse event data?
FAERS reports can look alarming if you don't know what you're looking at. Our guides explain what the numbers actually mean before you draw any conclusions.
How to Read FDA Adverse Event Reports →