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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.

EFANESOCTOCOG ALFA: 623 Adverse Event Reports & Safety Profile

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623
Total FAERS Reports
2 (0.3%)
Deaths Reported
84
Hospitalizations
623
As Primary/Secondary Suspect
1
Life-Threatening
1
Disabilities

First Report: 20200409 · Latest Report: 20250917

What Are the Most Common EFANESOCTOCOG ALFA Side Effects?

#1 Most Reported
Haemorrhage
201 reports (32.3%)
#2 Most Reported
Traumatic haemorrhage
55 reports (8.8%)
#3 Most Reported
Arthralgia
45 reports (7.2%)

All EFANESOCTOCOG ALFA Side Effects by Frequency

Side Effect Reports % of Total Deaths Hosp.
Haemorrhage 201 32.3% 0 20
Traumatic haemorrhage 55 8.8% 0 4
Arthralgia 45 7.2% 0 5
Fall 35 5.6% 0 3
Haemarthrosis 29 4.7% 0 7
Joint injury 29 4.7% 0 0
Limb injury 29 4.7% 0 4
Inappropriate schedule of product administration 24 3.9% 0 3
Contusion 23 3.7% 0 3
Epistaxis 23 3.7% 0 1
Dizziness 20 3.2% 0 2
Dyspnoea 19 3.1% 0 3
Headache 18 2.9% 0 4
Joint swelling 17 2.7% 0 2
Head injury 16 2.6% 0 0
Spontaneous haemorrhage 16 2.6% 0 1
Ligament sprain 15 2.4% 0 0
Pain 15 2.4% 0 4
Flushing 14 2.3% 0 1
Injury 13 2.1% 0 4

Who Reports EFANESOCTOCOG ALFA Side Effects? Age & Gender Data

Gender: 4.8% female, 95.2% male. Average age: 29.9 years. Most reports from: US. View detailed demographics →

Is EFANESOCTOCOG ALFA Getting Safer? Reports by Year

YearReportsDeathsHosp.
2020 1 0 0
2021 3 0 2
2022 2 0 1
2023 66 0 11
2024 160 1 26
2025 255 1 34

View full timeline →

What Is EFANESOCTOCOG ALFA Used For?

IndicationReports
Factor viii deficiency 292
Haemorrhage prophylaxis 42
Haemorrhage 33
Prophylaxis 19
Haemophilia 14
Product used for unknown indication 10

EFANESOCTOCOG ALFA vs Alternatives: Which Is Safer?

EFANESOCTOCOG ALFA vs EFAVIRENZ EFANESOCTOCOG ALFA vs EFAVIRENZ\EMTRICITABINE\TENOFOVIR DISOPROXIL EFANESOCTOCOG ALFA vs EFAVIRENZ\LAMIVUDINE\TENOFOVIR DISOPROXIL EFANESOCTOCOG ALFA vs EFFEXOR EFANESOCTOCOG ALFA vs EFFIENT EFANESOCTOCOG ALFA vs EFGARTIGIMOD ALFA EFANESOCTOCOG ALFA vs EFGARTIGIMOD ALFA-FCAB EFANESOCTOCOG ALFA vs EFGARTIGIMOD ALFA\HYALURONIDASE-QVFC EFANESOCTOCOG ALFA vs EFINACONAZOLE EFANESOCTOCOG ALFA vs EFLORNITHINE

Official FDA Label for EFANESOCTOCOG ALFA

Official prescribing information from the FDA-approved drug label.