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Drug side effects

ranibizumab Side Effects

The reactions most often reported to the FDA for ranibizumab (also sold as Lucentis), with demographics, serious outcomes, and reporting trends.

Data updated 2026-05-15

26,174
FAERS reports

Data from the FDA Adverse Event Reporting System (FAERS), 2005 to 2025. A FAERS report records a temporal association, not proof of cause. See our methodology for how figures are compiled and de-duplicated.

The most commonly reported side effects of ranibizumab come from 26,174 reports to the FDA, broken down here by frequency, patient demographics, and serious outcomes.

This page analyzes 26,174 reports to the FDA Adverse Event Reporting System (FAERS) for ranibizumab (Lucentis): the reactions reported most often, who reported them, serious outcomes such as hospitalization, and year-over-year trends. A FAERS report does not prove the drug caused the effect, and report volume tracks how widely a drug is used, not how likely an effect is for any one person. Educational information, not medical advice.

Total Reports

26,174

Reports Mentioning Death

5,072

19.4% of reports — not proof the medicine caused the death

Hospitalizations

4,781

18.3% of reports

Top Indication

Product Used For Unknown Indication

Most Reported Adverse Reactions

DEATH
3,783
VISUAL ACUITY REDUCED
2,888
VISUAL IMPAIRMENT
1,623
CEREBROVASCULAR ACCIDENT
1,235
EYE HAEMORRHAGE
1,041
BLINDNESS
1,036
VISION BLURRED
1,029
EYE PAIN
954
RETINAL HAEMORRHAGE
789
ENDOPHTHALMITIS
727
MYOCARDIAL INFARCTION
688
CATARACT
681
VITREOUS FLOATERS
618
FALL
590
MALAISE
582
MACULAR OEDEMA
574
HEADACHE
484

Who Reports Side Effects

Gender Distribution

Female 12,771 (56%)
Male 9,954 (43%)
Unknown 210

Age Distribution

0-17 75 (1%)
18-44 442 (4%)
45-64 2,417 (19%)
65-74 2,945 (23%)
75+ 6,674 (53%)

Reporting Trend by Year

2005 2025

Reactions in Death Reports

Top reactions reported in 5,072 reports where death was an outcome. These are voluntarily reported and do not establish causation.

Reaction Reports
DEATH 3,778
MYOCARDIAL INFARCTION 203
CEREBROVASCULAR ACCIDENT 172
PNEUMONIA 106
VISUAL ACUITY REDUCED 81
FALL 77
CARDIAC FAILURE 69
CARDIAC ARREST 67
MYOCARDIAL ISCHAEMIA 64
ATRIAL FIBRILLATION 57
CARDIAC FAILURE CONGESTIVE 57
MALAISE 54
HYPERTENSION 49
NEOPLASM MALIGNANT 42
SEPSIS 38
RENAL FAILURE 36
BRONCHOPNEUMONIA 35
GENERAL PHYSICAL HEALTH DETERIORATION 33
LUNG NEOPLASM MALIGNANT 32

Reactions in Hospitalization Reports

Top reactions in 4,781 reports where hospitalization was an outcome.

Reaction Reports
CEREBROVASCULAR ACCIDENT 567
VISUAL ACUITY REDUCED 398
FALL 337
MYOCARDIAL INFARCTION 319
PNEUMONIA 243
MALAISE 198
VISUAL IMPAIRMENT 198
CEREBRAL INFARCTION 192
VISION BLURRED 166
ENDOPHTHALMITIS 158
EYE PAIN 154
TRANSIENT ISCHAEMIC ATTACK 143
HYPERTENSION 142
ATRIAL FIBRILLATION 133
DYSPNOEA 133
EYE HAEMORRHAGE 127
RETINAL HAEMORRHAGE 125
DEATH 113
BLINDNESS 110

Compare ranibizumab vs aflibercept →

What the FAERS Data Reveals About ranibizumab Side Effects

The FDA Adverse Event Reporting System (FAERS) contains 26,174 voluntary reports linked to ranibizumab and its brand equivalents (Lucentis), spanning 2005 through 2025. Of those, 5,072 (19.4%) listed death as an outcome and 4,781 (18.3%) involved hospitalization. The most common indication reported alongside adverse events was Product Used For Unknown Indication.

Demographic breakdowns help contextualize who is being exposed to the drug. Of reports with known sex, 56% were female and 43% male; age distribution skews toward 75+, with 6,674 reports in that bracket. The single most reported reaction is death with 3,783 submissions, followed by visual acuity reduced and visual impairment.

How to read these numbers

FAERS is a signal-detection tool, not a scorecard. Reports are voluntary, and a single case may list multiple suspect drugs, so numbers above should not be read as incidence rates or per-patient risk. Widely prescribed drugs naturally accumulate more reports than niche therapies even when individual risk is low. These aggregates are useful for spotting patterns that merit further pharmacovigilance, not for choosing between medications. This page is for educational reference only and is not medical advice, speak with a licensed clinician about any side-effect concerns.