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What is Bexsero?

  • Bexsero is a Meningococcal group B Vaccine. 
  • It contains four different components from the surface of the bacteria Neisseria meningitidis group B. 
  • It is given to individuals from 2 months of age and older to help protect against disease caused by the Neisseria meningitidis group B bacteria. These bacteria can cause serious, and sometimes life-threatening, infections such as meningitis (inflammation of the covering of the brain and spinal cord) and sepsis (blood poisoning).

How does it work?

  • The vaccine works by specifically stimulating the body’s natural defense system of the vaccinated person. This results in protection against the disease. 
  • Talk to your doctor, nurse or pharmacist before you or your child receive Bexsero.


  • Do not use Bexsero if you or your child are allergic to the active substances or any of the other ingredients of this vaccine.
  • Very common side effects ((these may affect more than 1 in 10 people) for Infants and children (up to 10 years of age) include; fever (≥38ºC), loss of appetite, tenderness or discomfort at the injection site (including severe injection site tenderness resulting in crying when injected limb is moved), painful joints, skin rash (children aged 12 to 23 months) (uncommon after booster), sleepiness, feeling irritable, unusual crying, vomiting, diarrhea and headache. For Adolescents (from 11 years of age) and adults Very common (these may affect more than 1 in 10 people) include; pain at the injection site resulting in inability to perform normal daily activity, painful muscles and joints, nausea, generally feeling unwell and headache.
  • For more information about Bexsero please read the patient information leaflet.

If you experience any side effects, talk to your doctor, pharmacist or nurse. This includes any side effects not listed in the package 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.

Bexsero is a registered trademark of the GlaxoSmithKline group of companies.