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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.

EFTRENONACOG ALFA: 2,138 Adverse Event Reports & Safety Profile

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2,138
Total FAERS Reports
29 (1.4%)
Deaths Reported
379
Hospitalizations
2,138
As Primary/Secondary Suspect
21
Life-Threatening
10
Disabilities

First Report: 200609 · Latest Report: 20250924

What Are the Most Common EFTRENONACOG ALFA Side Effects?

#1 Most Reported
Haemorrhage
802 reports (37.5%)
#2 Most Reported
Haemarthrosis
196 reports (9.2%)
#3 Most Reported
Fall
151 reports (7.1%)

All EFTRENONACOG ALFA Side Effects by Frequency

Side Effect Reports % of Total Deaths Hosp.
Haemorrhage 802 37.5% 0 82
Haemarthrosis 196 9.2% 0 31
Fall 151 7.1% 0 36
Contusion 108 5.1% 0 15
Arthralgia 104 4.9% 0 13
Traumatic haemorrhage 93 4.4% 0 14
Limb injury 83 3.9% 0 8
Head injury 76 3.6% 0 24
Epistaxis 73 3.4% 0 11
Spontaneous haemorrhage 71 3.3% 0 6
Joint injury 63 3.0% 0 5
Joint swelling 62 2.9% 0 11
Pain 61 2.9% 0 13
Muscle haemorrhage 46 2.2% 0 3
Injury 45 2.1% 0 8
Pain in extremity 41 1.9% 0 13
Post procedural haemorrhage 38 1.8% 0 16
Inappropriate schedule of product administration 35 1.6% 0 4
Weight increased 34 1.6% 0 4
Drug ineffective 33 1.5% 0 3

Who Reports EFTRENONACOG ALFA Side Effects? Age & Gender Data

Gender: 2.0% female, 98.0% male. Average age: 26.7 years. Most reports from: US. View detailed demographics →

Is EFTRENONACOG ALFA Getting Safer? Reports by Year

YearReportsDeathsHosp.
2006 2 0 0
2012 5 0 4
2013 6 0 6
2014 46 0 28
2015 71 1 28
2016 94 2 38
2017 118 4 34
2018 96 5 19
2019 96 1 23
2020 58 2 12
2021 132 0 19
2022 169 1 17
2023 278 0 45
2024 219 0 34
2025 189 1 20

View full timeline →

What Is EFTRENONACOG ALFA Used For?

IndicationReports
Factor ix deficiency 1,133
Haemophilia 148
Haemorrhage 109
Product used for unknown indication 93
Prophylaxis 77
Haemorrhage prophylaxis 34
Factor viii deficiency 17
Immune tolerance induction 16
Haemarthrosis 6

EFTRENONACOG ALFA vs Alternatives: Which Is Safer?

EFTRENONACOG ALFA vs EGG PHOSPHOLIPIDS\GLYCERIN\MEDIUM-CHAIN TRIGLYCERIDES\SOYBEAN OIL EFTRENONACOG ALFA vs EGG PHOSPHOLIPIDS\GLYCERIN\SOYBEAN OIL EFTRENONACOG ALFA vs EGG PHOSPHOLIPIDS\SAFFLOWER OIL\SOYBEAN OIL EFTRENONACOG ALFA vs ELACESTRANT EFTRENONACOG ALFA vs ELAFIBRANOR EFTRENONACOG ALFA vs ELAGOLIX EFTRENONACOG ALFA vs ELAGOLIX\ESTRADIOL\NORETHINDRONE EFTRENONACOG ALFA vs ELAPEGADEMASE-LVLR EFTRENONACOG ALFA vs ELASOMERAN EFTRENONACOG ALFA vs ELBASVIR

Official FDA Label for EFTRENONACOG ALFA

Official prescribing information from the FDA-approved drug label.