BRANMOOR
THURSDAY · 14 MAY 2026

Venetoclax

FDA Adverse Event Reporting System · 2025 window

Rank #223 by volume 3,533 reports in 2025

2025 report counts

Total adverse-event reports
3,533
Classified as serious
3,452
Reports with fatal outcome
752
Fatality share of serious reports
21.8%
Rank in window (by total report volume)
#223 of 500

Top reported reactions (serious-only)

The 10 most-reported reactions among serious-classified FAERS reports for this drug in 2025. MedDRA preferred terms.

Reaction (MedDRA PT)2025 reports
Myelosuppression 635
Off Label Use 359
Neutropenia 333
Febrile Neutropenia 227
Drug Ineffective 214
Death 210
Pyrexia 176
Anaemia 169
Thrombocytopenia 167
Pneumonia 154

Important caveats

FAERS report counts are a reporting signal, not a clinical assertion of causation. Higher report volumes correlate with: larger treated populations, established manufacturer pharmacovigilance infrastructure, sicker patient populations (specialty biologics for serious disease will always attract more reports than common over-the-counter agents), and reporter familiarity with the reporting workflow.

The paid FAERS Signal Surveillance product adds the disproportionality analysis (Information Component, Empirical Bayes Geometric Mean, Proportional Reporting Ratio) that normalizes these confounders and surfaces emerging signal against the FAERS baseline. See the product page.

For the canonical FDA record, see the FAERS Public Dashboard.

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