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This website provides information on Invasive Meningococcal Disease (IMD), inflammation of the lining of the brain and spinal cord caused by meningococcal bacteria, which can lead to blood poisoning (septicaemia). Where the term meningitis is used in this website it refers to IMD caused by meningococcal bacteria.


This website is brought to you by Pfizer Limited, a company registered in England under No. 526209 with its registered office at Ramsgate Road, Sandwich, Kent CT13 9NJ, VAT registration number GB201048427. If you have an enquiry about the company, our healthcare business, or one of our medicines you can contact Pfizer UK by telephone on 01304 616161.


If you are a patient, your GP or another relevant healthcare professional is best placed to advise you on your healthcare. However, if you would like to discuss the information in the Patient Information Leaflet (PIL) for a Pfizer medicine you are taking you can contact us on 01304 616161.

Healthcare professionals

If you are a healthcare professional, you can also visit our Medical Information website to submit an enquiry and access medical information documents.

What to do if you experience unexpected side effects

If you are taking or prescribing a medicine and experience any side effects, you should immediately report these to your doctor, to another healthcare professional (such as a nurse or carer) or to the company that produced your medicine.

If you have any concerns about a specific Pfizer medication (bearing the Pfizer logo) you can contact Pfizer Medical Information in the United Kingdom on 01304 616161. Alternatively, the Medicines and Healthcare Products Regulatory Agency (MHRA) can be contacted through its Yellow Card reporting system.


Media professionals can contact our UK Press Office team directly with enquiries. Please note that this email address is intended for journalists with specific enquiries. Unfortunately we are unable to respond to any non-media enquiries sent to this address.