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Important: This site presents data from the FDA Adverse Event Reporting System (FAERS). A report does not mean the drug caused the event. Full disclaimer.

WARFARIN: Side Effect Reports by Year

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Year-by-year breakdown of FAERS adverse event reports for WARFARIN. Total: 40,823 reports.

Year Reports Deaths Hospitalizations Death Rate
2000 12 0 4 N/A
2001 26 0 7 N/A
2002 17 3 10 17.6%
2003 19 5 12 26.3%
2004 25 2 16 8.0%
2005 32 5 20 15.6%
2006 48 5 31 10.4%
2007 42 4 17 9.5%
2008 116 9 39 7.8%
2009 83 3 44 3.6%
2010 116 15 81 12.9%
2011 167 27 118 16.2%
2012 421 86 320 20.4%
2013 1,020 182 721 17.8%
2014 2,617 385 1,928 14.7%
2015 2,702 375 1,956 13.9%
2016 2,515 309 1,747 12.3%
2017 2,297 283 1,613 12.3%
2018 1,912 317 1,267 16.6%
2019 1,700 197 1,108 11.6%
2020 1,341 186 839 13.9%
2021 766 93 458 12.1%
2022 581 74 370 12.7%
2023 340 64 192 18.8%
2024 336 20 220 6.0%
2025 121 18 72 14.9%
Total 40,823 4,976 20,614 12.2%

FDA approval date: Approved Prior to Jan 1, 1982.

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