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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.

INTERFERON ALFA-2B: 2,075 Adverse Event Reports & Safety Profile

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2,075
Total FAERS Reports
145 (7.0%)
Deaths Reported
389
Hospitalizations
2,075
As Primary/Secondary Suspect
70
Life-Threatening
41
Disabilities
Prescription
Status

FDA Application: 103132 ·

First Report: 1991 · Latest Report: 20240828

What Are the Most Common INTERFERON ALFA-2B Side Effects?

#1 Most Reported
Product use in unapproved indication
224 reports (10.8%)
#2 Most Reported
Off label use
207 reports (10.0%)
#3 Most Reported
Fatigue
206 reports (9.9%)

All INTERFERON ALFA-2B Side Effects by Frequency

Side Effect Reports % of Total Deaths Hosp.
Product use in unapproved indication 224 10.8% 20 18
Off label use 207 10.0% 8 27
Fatigue 206 9.9% 5 26
Nausea 120 5.8% 4 20
Influenza like illness 105 5.1% 0 8
Drug ineffective 94 4.5% 7 10
Product use issue 86 4.1% 10 5
Headache 80 3.9% 0 13
Pyrexia 80 3.9% 6 33
No adverse event 76 3.7% 0 0
Adverse event 65 3.1% 2 24
Malaise 62 3.0% 2 23
Death 60 2.9% 59 13
Diarrhoea 57 2.8% 3 11
Decreased appetite 55 2.7% 3 17
Neutropenia 50 2.4% 10 15
Pain 49 2.4% 2 12
Anaemia 46 2.2% 4 27
Chills 46 2.2% 1 10
Depression 44 2.1% 1 8

Who Reports INTERFERON ALFA-2B Side Effects? Age & Gender Data

Gender: 48.6% female, 51.4% male. Average age: 53.2 years. Most reports from: US. View detailed demographics →

Is INTERFERON ALFA-2B Getting Safer? Reports by Year

YearReportsDeathsHosp.
2000 2 0 0
2001 5 0 3
2002 9 0 7
2003 4 0 1
2004 8 0 3
2005 7 0 2
2006 6 1 1
2007 11 0 0
2008 8 0 2
2009 6 0 1
2010 6 1 1
2011 15 1 3
2012 73 3 36
2013 99 5 36
2014 211 24 86
2015 112 20 35
2016 123 11 26
2017 143 11 20
2018 115 7 15
2019 105 8 10
2020 68 3 6
2021 20 2 3
2022 1 0 1
2024 1 0 1

View full timeline →

What Is INTERFERON ALFA-2B Used For?

IndicationReports
Malignant melanoma 190
Hepatitis c 137
Cutaneous t-cell lymphoma 83
Mycosis fungoides 81
Product used for unknown indication 79
Chronic hepatitis c 77
Bladder cancer 65
Covid-19 43
Adult t-cell lymphoma/leukaemia 29
Chronic myeloid leukaemia 29

INTERFERON ALFA-2B vs Alternatives: Which Is Safer?

INTERFERON ALFA-2B vs INTERFERON BETA INTERFERON ALFA-2B vs INTERFERON BETA-1A INTERFERON ALFA-2B vs INTERFERON BETA-1B INTERFERON ALFA-2B vs INTERFERON GAMMA INTERFERON ALFA-2B vs INTERFERON GAMMA-1B INTERFERON ALFA-2B vs INVEGA INTERFERON ALFA-2B vs INVEGA SUSTENNA INTERFERON ALFA-2B vs INVESTIGATIONAL BIOSIMILARS INTERFERON ALFA-2B vs INVESTIGATIONAL PRODUCT INTERFERON ALFA-2B vs INVOKANA

Official FDA Label for INTERFERON ALFA-2B

Official prescribing information from the FDA-approved drug label.