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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 beta [EPC] — Common Side Effects

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Side Effect Total Reports Drugs Deaths Hosp. Life-Threat.
Multiple sclerosis relapse 6,876 2 47 3,701 32
Influenza like illness 5,906 2 14 1,035 26
Multiple sclerosis 3,948 2 199 1,113 22
Memory impairment 3,923 2 4 592 11
Fatigue 3,837 2 13 878 23
Fall 3,534 2 53 1,785 31
Gait disturbance 3,391 2 21 995 18
Pain 3,272 2 21 788 16
Headache 3,120 2 8 772 21
Death 2,961 2 2,960 136 12
Drug ineffective 2,588 2 20 496 16
Injection site pain 2,567 2 2 391 6
Malaise 2,448 2 27 611 10
Pyrexia 2,191 2 25 709 11
Asthenia 1,989 2 27 717 17
Injection site erythema 1,953 2 2 304 9
Hypoaesthesia 1,906 2 6 576 19
Depression 1,801 2 14 480 20
Drug dose omission 1,733 2 1 194 3
Maternal exposure during pregnancy 1,720 2 2 211 3
Feeling abnormal 1,661 2 4 280 7
Pain in extremity 1,657 2 5 532 11
Balance disorder 1,648 2 5 487 14
Dizziness 1,595 2 2 491 11
Chills 1,560 2 3 300 6
Anxiety 1,540 2 6 308 11
Injection site bruising 1,525 2 2 181 4
Nausea 1,515 2 8 358 21
Mobility decreased 1,485 2 20 490 8
Muscular weakness 1,379 2 9 512 18
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