INTERFERON BETA 1B

N/A

Manufactured by Bayer HealthCare Pharmaceuticals Inc.

36,175 FDA adverse event reports analyzed

Last updated: 2026-04-14

About INTERFERON BETA 1B

INTERFERON BETA 1B is a medication tracked in the FDA Adverse Event Reporting System (FAERS), manufactured by Bayer HealthCare Pharmaceuticals Inc.. The most commonly reported adverse reactions for INTERFERON BETA 1B include INFLUENZA LIKE ILLNESS, MULTIPLE SCLEROSIS RELAPSE, INJECTION SITE PAIN, FATIGUE, MULTIPLE SCLEROSIS. This page provides a comprehensive breakdown of reported side effects, safety signals, patient demographics, and AI-powered safety analysis for INTERFERON BETA 1B.

Top Adverse Reactions

INFLUENZA LIKE ILLNESS1,398 reports
MULTIPLE SCLEROSIS RELAPSE1,344 reports
INJECTION SITE PAIN1,195 reports
FATIGUE1,191 reports
MULTIPLE SCLEROSIS1,164 reports
INJECTION SITE ERYTHEMA975 reports
DRUG INEFFECTIVE953 reports
PAIN856 reports
HEADACHE842 reports
INJECTION SITE REACTION832 reports
FALL814 reports
DEPRESSION813 reports
GAIT DISTURBANCE774 reports
PYREXIA747 reports
DEATH724 reports
ASTHENIA682 reports
HYPOAESTHESIA674 reports
CHILLS595 reports
NAUSEA586 reports
DIZZINESS544 reports
PAIN IN EXTREMITY494 reports
INJECTION SITE MASS480 reports
MALAISE463 reports
DRUG DOSE OMISSION443 reports
INJECTION SITE BRUISING439 reports
MUSCULAR WEAKNESS437 reports
BALANCE DISORDER433 reports
TREMOR402 reports
URINARY TRACT INFECTION396 reports
VOMITING374 reports
DYSPNOEA372 reports
MUSCLE SPASMS359 reports
MEMORY IMPAIRMENT353 reports
INSOMNIA333 reports
DIARRHOEA329 reports
PARAESTHESIA328 reports
MOBILITY DECREASED327 reports
BACK PAIN311 reports
FEELING ABNORMAL307 reports
LOSS OF CONSCIOUSNESS297 reports
ARTHRALGIA296 reports
WEIGHT DECREASED290 reports
ABASIA279 reports
INJECTION SITE RASH259 reports
CONVULSION249 reports
ADVERSE DRUG REACTION246 reports
CHEST PAIN246 reports
CONDITION AGGRAVATED241 reports
ANXIETY240 reports
PNEUMONIA234 reports
HEPATIC ENZYME INCREASED231 reports
MYOCARDIAL INFARCTION224 reports
DEPRESSED MOOD215 reports
PRODUCT DOSE OMISSION214 reports
RASH212 reports
INJECTION SITE SWELLING204 reports
CONTUSION202 reports
MUSCULOSKELETAL STIFFNESS202 reports
DRUG INTOLERANCE200 reports
VISUAL IMPAIRMENT199 reports
HYPERSENSITIVITY189 reports
MYALGIA189 reports
PRURITUS184 reports
HYPERTENSION183 reports
DRUG HYPERSENSITIVITY182 reports
INJECTION SITE INDURATION182 reports
MIGRAINE182 reports
OEDEMA PERIPHERAL181 reports
VISION BLURRED180 reports
CEREBROVASCULAR ACCIDENT177 reports
INFLUENZA172 reports
ERYTHEMA171 reports
ABDOMINAL PAIN165 reports
ALOPECIA164 reports
NASOPHARYNGITIS164 reports
WHITE BLOOD CELL COUNT DECREASED155 reports
HYPERHIDROSIS154 reports
URTICARIA151 reports
INJECTION SITE HAEMATOMA149 reports
CONFUSIONAL STATE147 reports
CONSTIPATION147 reports
INJECTION SITE INFECTION147 reports
DEHYDRATION142 reports
INJECTION SITE SCAR142 reports
ANAEMIA139 reports
CELLULITIS139 reports
ABDOMINAL PAIN UPPER137 reports
INJECTION SITE PRURITUS135 reports
OFF LABEL USE134 reports
FLUSHING133 reports
INJECTION SITE NECROSIS133 reports
SPEECH DISORDER133 reports
URINARY INCONTINENCE133 reports
STRESS132 reports
BLOOD PRESSURE INCREASED130 reports
BURNING SENSATION130 reports
WEIGHT INCREASED130 reports
PRODUCT DOSE OMISSION ISSUE129 reports
SEIZURE123 reports
SOMNOLENCE123 reports

Report Outcomes

Out of 18,965 classified reports for INTERFERON BETA 1B:

Serious 56.1%Non-Serious 43.9%

The FDA classifies an adverse event as “serious” if it results in death, hospitalization, disability, congenital anomaly, or requires intervention to prevent permanent damage.

Demographics Breakdown

Reports by Sex

Female14,109 (76.8%)
Male4,097 (22.3%)
Unknown165 (0.9%)

Reports by Age

Age 55391 reports
Age 58390 reports
Age 53389 reports
Age 57369 reports
Age 50357 reports
Age 56356 reports
Age 59349 reports
Age 49347 reports
Age 52343 reports
Age 54336 reports
Age 60336 reports
Age 51334 reports
Age 47331 reports
Age 62327 reports
Age 48322 reports
Age 61316 reports
Age 45313 reports
Age 44310 reports
Age 63288 reports
Age 46277 reports

Demographics reflect voluntary FDA adverse event reporting patterns and may not represent the full patient population.

Frequently Asked Questions

How many FDA adverse event reports are associated with INTERFERON BETA 1B?

This profile reflects 36,175 FDA FAERS reports that mention INTERFERON BETA 1B. Reporting is voluntary and does not prove that the drug caused any listed event.

Which adverse reactions are most often listed for INTERFERON BETA 1B?

Frequently reported terms in FAERS include INFLUENZA LIKE ILLNESS, MULTIPLE SCLEROSIS RELAPSE, INJECTION SITE PAIN, FATIGUE, MULTIPLE SCLEROSIS, INJECTION SITE ERYTHEMA. Rankings reflect reporting volume in this dataset, not confirmed side effect rates in the general population.

Who manufactures INTERFERON BETA 1B?

Labeling and FAERS entries often list Bayer HealthCare Pharmaceuticals Inc. in connection with INTERFERON BETA 1B. Always verify the specific product and NDC with your pharmacist.

Important Disclaimer: This content is generated by AI analysis of FDA adverse event reports and is provided for informational purposes only. It is not medical advice. Adverse event reports submitted to the FDA do not prove that a medication caused the reported side effect. Always consult your healthcare provider before starting, stopping, or changing any medication. If you experience a serious side effect, contact your doctor or call 911 immediately.