BRANMOOR
THURSDAY · 14 MAY 2026

Tamsulosin

FDA Adverse Event Reporting System · 2025 window

Rank #114 by volume 5,981 reports in 2025

2025 report counts

Total adverse-event reports
5,981
Classified as serious
6,308
Reports with fatal outcome
894
Fatality share of serious reports
14.2%
Rank in window (by total report volume)
#114 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
Death 436
Fatigue 432
Off Label Use 363
Dyspnoea 337
Diarrhoea 308
Fall 303
Dizziness 274
Asthenia 268
Pneumonia 256
Drug Ineffective 237

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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