Interferon Beta-1b

Common brands: Betaseron, Ampyra, Baclofen, Baclofen (Intrathecal), Fleqsuvy

Top reporter: Bayer Healthcare Pharmaceuticals Inc.

Nonsteroidal Anti-inflammatory Drug [EPC]Potassium Channel Blocker [EPC]gamma-Aminobutyric Acid-ergic Agonist [EPC]Benzodiazepine [EPC]Interferon beta [EPC]
19,026
Total Reports
2,496
Serious Reports
1,334
Death Reports
30
Reported Reactions
Death Report Ratio: High (7.01%)

Patient Demographics

Male
4,104
Female
14,143

Reported Adverse Reactions (30)

Side effects reported in FDA adverse event reports for Interferon Beta-1b.

# Reaction Reports % of Total
1 INFLUENZA LIKE ILLNESS 1,401
6.3%
2 MULTIPLE SCLEROSIS RELAPSE 1,343
6.1%
3 INJECTION SITE PAIN 1,198
5.4%
4 FATIGUE 1,194
5.4%
5 MULTIPLE SCLEROSIS 1,167
5.3%
6 INJECTION SITE ERYTHEMA 977
4.4%
7 DRUG INEFFECTIVE 964
4.4%
8 PAIN 854
3.9%
9 HEADACHE 842
3.8%
10 INJECTION SITE REACTION 839
3.8%
11 FALL 817
3.7%
12 DEPRESSION 813
3.7%
13 GAIT DISTURBANCE 779
3.5%
14 PYREXIA 746
3.4%
15 DEATH 726
3.3%
16 ASTHENIA 681
3.1%
17 HYPOAESTHESIA 673
3.0%
18 CHILLS 594
2.7%
19 NAUSEA 588
2.7%
20 DIZZINESS 547
2.5%
21 PAIN IN EXTREMITY 494
2.2%
22 INJECTION SITE MASS 481
2.2%
23 MALAISE 465
2.1%
24 DRUG DOSE OMISSION 443
2.0%
25 INJECTION SITE BRUISING 439
2.0%
26 MUSCULAR WEAKNESS 438
2.0%
27 BALANCE DISORDER 433
2.0%
28 TREMOR 402
1.8%
29 URINARY TRACT INFECTION 398
1.8%
30 VOMITING 379
1.7%

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.