Tysabri Vial Side Effects by Likelihood and Severity

COMMON side effects


If experienced, these tend to have a Severe expression

  • Depression
  • Rash
  • Urinary Tract Infection

If experienced, these tend to have a Less Severe expression

  • Acute Infection Of The Nose, Throat Or Sinus
  • Diarrhea
  • Feel Like Throwing Up
  • Head Pain
  • Inflammation Of The Lining Of The Stomach And Intestines
  • Inflammation Or Infection Of Vagina
  • Intense Abdominal Pain
  • Joint Pain
  • Low Energy
  • Lower Respiratory Infection
  • Pain

INFREQUENT side effects


If experienced, these tend to have a Severe expression

  • Fluid Retention In The Legs, Feet, Arms Or Hands
  • Hepatitis Caused By Drugs
  • Hives
  • Inflammation Of Skin Caused By An Allergy

If experienced, these tend to have a Less Severe expression

  • Any Disease Of The Teeth
  • Backache
  • Cough
  • Dizzy
  • Frequent Urination
  • Itching
  • Painful Periods

RARE side effects


If experienced, these tend to have a Severe expression

  • Abnormal Liver Function Tests
  • Acute Liver Failure
  • Acute Retinal Necrosis
  • Appendicitis
  • Chest Tightness
  • Disease In The White Matter Area Of The Brain
  • Encephalitis Caused By Herpes Simplex Virus
  • Gallstones
  • Having Thoughts Of Suicide
  • Hemolytic Anemia
  • High Amount Of Bilirubin In The Blood
  • High Blood Pressure
  • Hypersensitivity Drug Reaction
  • Increased Risk Of Bleeding
  • Infection
  • Inflammation Of The Brain Caused By Varicella Zoster Virus
  • Inflammation Of The Tonsils
  • Life Threatening Allergic Reaction
  • Liver Damage
  • Mycobacterium Avium Bacteria Infection
  • Opportunistic Fungal Infection
  • Ovarian Cyst
  • Pneumocystis Jiroveci Pneumonia Prevention
  • Progressive Disease In The White Matter Of The Brain
  • The Flu
  • Trouble Breathing
  • Viral Meningitis Caused By Herpes Simplex Virus
  • Viral Meningitis Caused By Varicella Zoster Virus

If experienced, these tend to have a Less Severe expression

  • Absence Of Menstrual Periods
  • Chills
  • Drowsiness
  • Feeling Anxious
  • Feeling Faint
  • Herpes Simplex Infection
  • Muscle Pain
  • Shaking Extremities
  • Weight Gain
  • Weight Loss

Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, except as may be authorized by the applicable terms of use.

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.