FDA Adverse Event Reports,
Made Searchable

Explore reported side effects for 500 drugs based on 161,178,634 adverse event reports from the FDA's FAERS database.

Browse All Drugs Browse Reactions
500
Drugs Tracked
123
Adverse Reactions
161,178,634
Total Reports

Most Reported Drugs

Drugs with the highest number of adverse event reports in the FDA FAERS database.

Drug Generic Name Reports Serious Deaths Top Reaction
HUMIRA ADALIMUMAB 695,826 196,301 28,959 DRUG INEFFECTIVE
ENBREL ETANERCEPT 591,577 67,663 16,506 DRUG INEFFECTIVE
ECOTRIN ASPIRIN 499,686 169,560 45,970 FATIGUE
ASPIRIN 325 ASPIRIN 499,522 168,629 45,850 FATIGUE
ASPIRIN 81 ASPIRIN 499,522 168,629 45,850 FATIGUE
BAYER LOW DOSE ASPIRIN 497,097 169,077 46,064 FATIGUE
LOW DOSE ASPIRIN ASPIRIN 493,984 168,311 45,324 FATIGUE
LOW DOSE ASPIRIN ENTERIC SAFETY COATED ASPIRIN 493,984 168,311 45,324 FATIGUE
ASPIRIN LOW DOSE ASPIRIN 493,474 168,126 45,354 FATIGUE
BAYER GENUINE ASPIRIN ASPIRIN 493,125 168,105 45,339 FATIGUE
ASPIRIN ENTERIC COATED ASPIRIN 493,090 168,133 45,358 FATIGUE
ASPIRINA CAPLETS ASPIRIN 493,016 168,114 45,348 FATIGUE
ASPIRIN CHEWABLE ASPIRIN 81 MG 492,997 168,129 45,353 FATIGUE
ASPIRIN REGULAR STRENGTH ASPIRIN 492,987 168,161 45,346 FATIGUE
ASPIRIN 81MG ASPIRIN 492,982 168,160 45,345 FATIGUE
ASPIRIN 81MG ADULT LOW DOSE ASPIRIN 492,982 168,160 45,345 FATIGUE
ASPIRIN ASPIRIN 492,967 168,125 45,350 FATIGUE
ASPIRIN 325 MG ASPIRIN 492,967 168,125 45,350 FATIGUE
ASPIRIN 81 MG ASPIRIN 492,967 168,125 45,350 FATIGUE
ASPIRIN 81 MG LOW DOSE ASPIRIN 492,967 168,125 45,350 FATIGUE
ENTERIC ASPIRIN ASPIRIN 492,536 168,076 45,296 FATIGUE
ENTERIC COATED ASPIRIN ASPIRIN 492,506 168,067 45,295 FATIGUE
ENTERIC COATED ASPIRIN REGULAR STRENGTH ASPIRIN 492,506 168,067 45,295 FATIGUE
BAYER ASPIRIN 492,478 168,059 45,281 FATIGUE
CHILDRENS ASPIRIN ASPIRIN 492,454 168,065 45,288 FATIGUE
COATED ASPIRIN ASPIRIN 492,400 168,049 45,279 FATIGUE
BUFFERED ASPIRIN ASPIRIN 492,356 168,047 45,276 FATIGUE
ADULT LOW DOSE ASPIRIN ASPIRIN 492,352 168,050 45,284 FATIGUE
EQUATE ASPIRIN CHEWABLE ASPIRIN 492,343 168,044 45,277 FATIGUE
EQUATE ASPIRIN ASPIRIN 492,342 168,044 45,277 FATIGUE
GOOD SENSE ASPIRIN ASPIRIN 492,334 168,050 45,279 FATIGUE
CHEWABLE ASPIRIN ASPIRIN 492,332 168,048 45,279 FATIGUE
CHEWABLE ASPIRIN LOW DOSE ASPIRIN 492,332 168,048 45,279 FATIGUE
BAYER ASPIRIN REGIMEN CHEWABLE LOW DOSE ASPIRIN ORANGE ASPIRIN 492,325 168,043 45,276 FATIGUE
BAYER ASPIRIN REGIMEN ENTERIC COATED ASPIRIN 492,318 168,042 45,276 FATIGUE
ASPIRIN 325 MG EC ASPIRIN 492,312 168,044 45,278 FATIGUE
TRI-BUFFERED ASPIRIN ASPIRIN 492,311 168,050 45,277 FATIGUE
ASPIRIN LOW STRENGTH ASPIRIN 492,309 168,048 45,282 FATIGUE
CAREALL ASPIRIN ASPIRIN 492,309 168,047 45,276 FATIGUE
ASPIRIN REGIMEN ASPIRIN 492,308 168,047 45,277 FATIGUE
ECOTRIN REGULAR STRENGTH ASPIRIN 492,307 168,043 45,277 FATIGUE
ST. JOSEPH LOW DOSE ASPIRIN ASPIRIN 492,307 168,045 45,277 FATIGUE
LOW DOSE ASPIRIN 81MG ASPIRIN 492,305 168,045 45,276 FATIGUE
ASPIRIN DELAYED RELEASE ASPIRIN 492,304 168,043 45,277 FATIGUE
ASPIRIN 81MG ENTERIC COATED LOW STRENGTH ASPIRIN REGIMEN ASPIRIN 492,303 168,043 45,277 FATIGUE
ASPIRIN PAIN RELIVER ASPIRIN 492,303 168,046 45,276 FATIGUE
REGULAR STRENGTH ASPIRIN ASPIRIN 492,303 168,043 45,276 FATIGUE
ASPIRIN 81MG ENTERIC COATED ASPIRIN 492,302 168,042 45,276 FATIGUE
ASPIRIN 81MG ENTERIC COATED DELAYED RELEASE ASPIRIN 492,302 168,042 45,276 FATIGUE
EXTRA STRENGTH ASPIRIN ASPIRIN 492,302 168,042 45,276 FATIGUE

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Most Reported Adverse Reactions

The most commonly reported side effects across all drugs in the FAERS database.

Reaction Total Reports Drugs Involved
FATIGUE 11,561,068 499
OFF LABEL USE 10,077,442 500
DRUG INEFFECTIVE 9,988,325 500
NAUSEA 9,822,201 499
PAIN 8,854,826 500
DYSPNOEA 8,799,278 499
DIARRHOEA 8,555,594 499
HEADACHE 8,339,258 499
ARTHRALGIA 7,020,968 490
VOMITING 6,887,655 497
DIZZINESS 6,403,566 491
PYREXIA 6,145,506 484
PNEUMONIA 6,004,227 498
RASH 5,942,908 497
ASTHENIA 5,852,679 491
MALAISE 5,427,042 498
FALL 5,335,583 479
DEATH 4,999,372 476
PRURITUS 4,846,888 468
TOXICITY TO VARIOUS AGENTS 4,246,942 294
CONDITION AGGRAVATED 3,236,806 320
INFUSION RELATED REACTION 3,176,492 296
RHEUMATOID ARTHRITIS 3,059,530 305
JOINT SWELLING 2,910,261 309
NASOPHARYNGITIS 2,875,256 310
WEIGHT INCREASED 2,537,491 294
HYPERTENSION 2,510,977 302
PAIN IN EXTREMITY 2,401,221 207
SINUSITIS 2,353,744 283
HYPERSENSITIVITY 2,295,819 284

View all 123 reactions →

About This Data

This site uses data from the FDA Adverse Event Reporting System (FAERS) accessed via the openFDA API. Reports are submitted voluntarily and do not prove that a drug caused a side effect. A high number of reports may reflect widespread use rather than higher risk. This is not medical advice. Always consult your healthcare provider.