This page is intended as reference information for the general public.
What is COMIRNATY JN.1 and what is it used for?
COMIRNATY JN.1 is a vaccine that has been developed by BioNTech and Pfizer. This vaccine has been adapted to target the JN.1 COVID-19 variant.
COMIRNATY JN.1 30 micrograms/dose dispersion for injection is indicated for active immunisation to prevent COVID-19 caused by SARS-CoV-2, in individuals 12 years of age and older.
COMIRNATY JN.110 micrograms/dose dispersion for injection single dose vial is indicated for active immunisation to prevent COVID-19 caused by SARS-CoV-2, in children aged 5 to 11 years.
COMIRNATY JN.1 3 micrograms/dose concentrate for dispersion for injection 3-dose vial is indicated for active immunisation to prevent COVID-19 caused by SARS-CoV-2, in infants and children aged 6 months to 4 years.
The vaccine causes the immune system (the body's natural defences) to produce antibodies and blood cells that work against the virus, so giving protection against COVID-19.
As COMIRNATY JN.1 does not contain the virus to produce immunity, it cannot give you COVID-19.
Reporting Side Effects
This product will be closely monitored to allow quick identification of new safety information. You can help by reporting any side effects that you may get. To report any side effects that you may get, please refer to the information at the bottom of this page.
The information provided on this site is intended for general information and education for UK based members of the public and is not intended to be a substitute for advice provided by a doctor or other qualified healthcare professional.
Reference Information
Medicines in Northern Ireland fall under the remit of the European Medicines Agency (EMA) whilst medicines in Great Britain (England, Scotland and Wales) fall under the remit of the Medicines and Healthcare products Regulatory Agency (MHRA) following the UK leaving the European Union. These agencies are responsible for the scientific evaluation, supervision and safety monitoring of medicines developed by pharmaceutical companies.
If you would like to see the Summary of Product Characteristics (SPC) or Patient Information Leaflet (PIL) for COMIRNATY JN.1 please follow these links:
Great Britain
COMIRNATY JN.1 30 micrograms
COMIRNATY JN.1 10 micrograms
COMIRNATY JN.1 3 micrograms
Northern Ireland
COMIRNATY JN.1 30 micrograms
COMIRNATY JN.1 10 micrograms
COMIRNATY JN.1 3 micrograms
▼ This medicine is subject to additional monitoring. This will allow quick identification of new safety information. You can help by reporting any side effects you may get.
If you are concerned about a side-effect, it can be reported directly via the Coronavirus Yellow Card reporting site https://coronavirus-yellowcard.mhra.gov.uk/ or search for MHRA Yellow Card in the Google Play or Apple App Store. When completing a report please include the vaccine brand and batch/lot number if available.
Pfizer is unable to provide advice on personal medical matters. Please consult your doctor or other relevant health professional for specific, health-related advice and support.