Interferon Beta-1a
Common brands: Avonex, Rebif, Tysabri, Tecfidera, Ampyra
Top reporter: Biogen Inc.
Interferon beta [EPC]Integrin Receptor Antagonist [EPC]Nonsteroidal Anti-inflammatory Drug [EPC]Potassium Channel Blocker [EPC]gamma-Aminobutyric Acid-ergic Agonist [EPC]
191,752
Total Reports
21,708
Serious Reports
9,759
Death Reports
30
Reported Reactions
Death Report Ratio: High (5.09%)
Patient Demographics
Reported Adverse Reactions (30)
Side effects reported in FDA adverse event reports for Interferon Beta-1a.
| # | Reaction | Reports | % of Total |
|---|---|---|---|
| 1 | MULTIPLE SCLEROSIS RELAPSE | 15,823 | |
| 2 | INFLUENZA LIKE ILLNESS | 13,243 | |
| 3 | FATIGUE | 11,538 | |
| 4 | FALL | 10,591 | |
| 5 | MULTIPLE SCLEROSIS | 9,333 | |
| 6 | GAIT DISTURBANCE | 8,911 | |
| 7 | HEADACHE | 8,410 | |
| 8 | MEMORY IMPAIRMENT | 7,986 | |
| 9 | PAIN | 7,739 | |
| 10 | INJECTION SITE PAIN | 6,318 | |
| 11 | ASTHENIA | 6,291 | |
| 12 | HYPOAESTHESIA | 5,555 | |
| 13 | DEPRESSION | 5,432 | |
| 14 | MALAISE | 5,098 | |
| 15 | PAIN IN EXTREMITY | 5,035 | |
| 16 | PYREXIA | 5,007 | |
| 17 | DEATH | 4,992 | |
| 18 | DRUG INEFFECTIVE | 4,969 | |
| 19 | BALANCE DISORDER | 4,890 | |
| 20 | URINARY TRACT INFECTION | 4,697 | |
| 21 | ANXIETY | 4,472 | |
| 22 | NAUSEA | 4,462 | |
| 23 | DIZZINESS | 4,255 | |
| 24 | MUSCULAR WEAKNESS | 4,082 | |
| 25 | PNEUMONIA | 3,870 | |
| 26 | INJECTION SITE ERYTHEMA | 3,782 | |
| 27 | MOBILITY DECREASED | 3,696 | |
| 28 | TREMOR | 3,650 | |
| 29 | FEELING ABNORMAL | 3,493 | |
| 30 | CHILLS | 3,451 |
Important Disclaimer
FDA adverse event reports are submitted voluntarily and do not prove causation. A reported reaction does not mean the drug caused it. Drugs with more users naturally have more reports. Always consult your doctor or pharmacist before making medication decisions.