Are There Any Side Effects?

Like all medicines, Entyvio can cause side effects although not everybody gets them.1

Possible serious side effects include infusion reactions or allergic reactions (may affect up to 1 in 100 people) and infections (may affect up to 1 in 10 people).1

Tell your doctor immediately if you notice any of the following:1

  • Wheezing or difficulty breathing
  • Hives
  • Itching of the skin
  • Swelling
  • Rapid heart rate
  • Feeling sick
  • Pain at the infusion site
  • Redness of skin
  • Chills or shivering
  • High fever or rash
List of Possible Side Effects1

1 in 10 People or More

1 in 10 People or Less

1 in 100 People or Less

1 in 10,000 People or Less

Very common

  • Common cold
  • Headache
  • Joint pain


  • Acne (pimples)
  • Anal infection
  • Anal sore
  • Back pain
  • Bloated stomach
  • Blocked nose
  • Chest infection
  • Cough
  • Eczema
  • Fever
  • Flu (influenza)
  • Haemorrhoids
  • Hard faeces
  • Heart burn
  • High blood pressure
  • Itching/itchiness
  • Muscle cramps
  • Muscle weakness
  • Night sweats
  • Pain in the limb
  • Passing gas
  • Prickling or tingling
  • Rash and redness
  • Sinus infection
  • Stomach flu
  • Throat pain
  • Throat infection
  • Tiredness


  • Redness and tenderness of hair follicle
  • Throat and mouth yeast infection
  • Vaginal infection
  • Shingles (herpes zoster)

Very rare

  • Pneumonia
  • Blurred vision
  • Sudden, severe allergic reaction which can cause breathing difficulty, swelling, fast heartbeat, sweating, drop in blood pressure, light-headedness, loss of consciousness and collapse (anaphylactic reaction and anaphylactic shock)

Unknown frequency

  • lung disease causing shortness of breath (interstitial lung disease)


Entyvio increases the risk of getting infections.

Infections may progress more rapidly and be more severe. This may include serious brain and nervous system infections.

You should not be treated with Entyvio if you have a severe infection.

If you develop symptoms suggestive of infection or nervous system problems, seek medical attention immediately.

Example symptoms include:


Nervous System Problems

  • Fever
  • Persistent cough
  • Weight loss
  • Listlessness
  • Confusion
  • Difficulties with vision
  • Difficulties with movement

Patient Information Leaflet

It is important that you read the information leaflet that came with your medicine and keep a copy for future reference.

Reporting of Side Effects

If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed on this website or in the Patient Information Leaflet. You can also report side effects directly via the Yellow Card Scheme at

By reporting side effects you can help provide more information on the safety of this medicine.