Betaseron Vial Side Effects by Likelihood and Severity

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COMMON side effects


If experienced, these tend to have a Severe expression

  • A Decreased Number Of Lymphocytes In The Blood
  • Abnormal Liver Function Tests
  • An Abnormal Increase In Muscle Tone
  • Low Levels Of A Type Of White Blood Cell Called Neutrophils
  • Low Levels Of White Blood Cells
  • Reactions At The Site Of The Injection

If experienced, these tend to have a Less Severe expression

  • A Skin Rash
  • Chest Pain
  • Chills
  • Difficulty Sleeping
  • Excessive Sweating
  • Fever
  • Flu-Like Symptoms
  • Generalized Weakness
  • Head Pain
  • Intense Abdominal Pain
  • Muscle Pain
  • Pain

INFREQUENT side effects


If experienced, these tend to have a Severe expression

  • Dead Skin
  • High Blood Pressure
  • Swollen Lymph Nodes
  • Tissue Death
  • Trouble Breathing

If experienced, these tend to have a Less Severe expression

  • A Feeling Of General Discomfort Called Malaise
  • Bleeding Not Related To Menstrual Period
  • Fluid Retention In The Legs, Feet, Arms Or Hands
  • Leg Cramps
  • Loss Of Muscle Coordination
  • The Inability To Have An Erection
  • Urinary Urgency, Or The Sudden Urge To Urinate
  • Weight Gain

RARE side effects


If experienced, these tend to have a Severe expression

  • A Significant Type Of Allergic Reaction Called Anaphylaxis
  • Anemia
  • Bronchospasm
  • Capillary Leak Syndrome, A Condition Where Fluid Leaks Out Of Small Blood Vessels
  • Cardiomyopathy, A Disease Of The Heart Muscle
  • Chronic Heart Failure
  • Decreased Blood Platelets
  • Depression
  • Hemolytic Uremic Syndrome, A Condition That Affects The Kidney And The Blood
  • High Amount Of Triglyceride In The Blood
  • Inflammation Of The Liver Called Hepatitis
  • Liver Failure
  • Mental Problems From Taking The Drug
  • Pancreatitis
  • Pulmonary Arterial Hypertension
  • Seizures
  • Suicidal Thoughts
  • Systemic Lupus Erythematosus, An Autoimmune Disease
  • Thrombotic Thrombocytopenic Purpura, A Type Of Blood Disorder
  • Worsening Of Chronic Heart Failure

If experienced, these tend to have a Less Severe expression

  • A Condition With Low Thyroid Hormone Levels
  • Abnormally Long Or Heavy Periods
  • Anxious Feelings
  • Confusion
  • Decreased Appetite
  • Diarrhea
  • Dizziness
  • Fast Heartbeat
  • Heart Throbbing Or Pounding
  • Hives
  • Itching
  • Joint Pain
  • Mood Changes
  • Nausea
  • Overactive Thyroid Gland
  • Skin Discoloration
  • Vomiting
  • Weight Loss
  • Widening Of Blood Vessels

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CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.