Reported Reactions

Adverse event reports that FDA received

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Reports that FDA received, by month

20,646,523 drug reports (FAERS, since 2004) and 26,326,888 device reports (MAUDE), by the month in which FDA received them.

What a report is

A report is not proof that a medicine or a device was the cause of an event.

FDA says:

Adverse event reports submitted to FDA do not undergo extensive validation or verification. Therefore, a causal relationship cannot be established between product and reactions listed in a report. While a suspected relationship may exist, it is not medically validated and should not be the sole source of information for clinical decision making or other assumptions about the safety or efficacy of a product. Additionally, it is important to remember that adverse event reports represent a small percentage of total usage numbers of a product. Common products may have a higher number of adverse events due to the higher total number of people using the product.

Source: openFDA, Drug Adverse Event Overview, section "Responsible use of the data". The site read the page on . The data have the reports that FDA received through .

FDA also says:

There is no certainty that the reported event (adverse event or medication error) was actually due to the product. FDA does not require that a causal relationship between a product and event be proven, and reports do not always contain enough detail to properly evaluate an event. The information in these reports has not been scientifically or otherwise verified as to a cause and effect relationship and cannot be used to estimate the incidence of these events.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

Do not rely on openFDA to make decisions regarding medical care. While we make every effort to ensure that data is accurate, you should assume all results are unvalidated.

Source: openFDA, Response of the drug event API (meta.disclaimer). The site read the page on .

Not medical advice. This site counts what was reported to FDA. Questions about a medicine or device belong with a pharmacist or clinician.

Drug reports by year

Drug reports (FAERS) for all drugs, by the year in which FDA received them
01,000,0002,000,000200420082012201620202024
Show the figures of the chart as a table
Drug reports (FAERS) for all drugs, by the year in which FDA received them
YearReports
2004169,855
2005226,695
2006243,473
2007265,716
2008309,577
2009337,730
2010483,781
2011557,586
2012700,624
2013773,984
2014875,087
20151,187,780
20161,186,065
20171,251,778
20181,428,121
20191,434,195
20201,455,117
20211,566,148
20221,523,664
20231,368,572
20241,319,106
20251,307,769
2026673,772

The latest year is not complete. openFDA says:

In recent years the FDA has undertaken efforts to increase collection of adverse events. Increases in the total number of adverse events is likely caused by improved reporting.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

Each month