PEGINTERFERON ALFA-2A: 24,277 Adverse Event Reports & Safety Profile

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24,277

Total FAERS Reports

534 (2.2%)

Deaths Reported

2,482

Hospitalizations

24,277

As Primary/Secondary Suspect

280

Life-Threatening

184

Disabilities

pharmaand GmbH

Manufacturer

Prescription

Status

Drug Class: Interferon alpha [EPC] · Route: SUBCUTANEOUS · Manufacturer: pharmaand GmbH · FDA Application: 103964 · HUMAN PRESCRIPTION DRUG · FDA Label: Available

First Report: 1992 · Latest Report: 20250616

What Are the Most Common PEGINTERFERON ALFA-2A Side Effects?

#1 Most Reported

Fatigue

3,324 reports (13.7%)

#2 Most Reported

Nausea

2,832 reports (11.7%)

#3 Most Reported

Anaemia

2,399 reports (9.9%)

All PEGINTERFERON ALFA-2A Side Effects by Frequency

Side Effect	Reports	% of Total	Deaths	Hosp.
Fatigue	3,324	13.7%	26	193
Nausea	2,832	11.7%	22	209
Anaemia	2,399	9.9%	72	460
Headache	2,195	9.0%	17	108
Rash	1,863	7.7%	27	174
White blood cell count decreased	1,735	7.2%	12	202
Pyrexia	1,731	7.1%	19	185
Insomnia	1,579	6.5%	18	78
Pruritus	1,470	6.1%	17	102
Pain	1,320	5.4%	7	72
Vomiting	1,283	5.3%	21	132
Influenza like illness	1,208	5.0%	8	54
Chills	1,178	4.9%	4	45
Depression	1,175	4.8%	19	124
Decreased appetite	1,168	4.8%	22	136
Dyspnoea	1,161	4.8%	11	160
Platelet count decreased	1,161	4.8%	17	123
Diarrhoea	1,136	4.7%	15	126
Weight decreased	1,118	4.6%	15	125
Asthenia	1,048	4.3%	17	146

Who Reports PEGINTERFERON ALFA-2A Side Effects? Age & Gender Data

Gender: 48.1% female, 51.9% male. Average age: 52.2 years. Most reports from: US. View detailed demographics →

Is PEGINTERFERON ALFA-2A Getting Safer? Reports by Year

Year	Reports	Deaths	Hosp.
2001	5	0	0
2002	14	0	4
2003	33	0	13
2004	51	1	18
2005	3