Comirnaty Original/Omicron BA.4-5 COVID-19 mRNA Vaccine 15micrograms/15micrograms/0.3ml dose dispersion for injection is presented in multi-dose vials. We refer to it as Comirnaty Original/Omicron BA.4-5 in our web articles and SOPs. The vials contain 6 doses of 0.3mL.
Comirnaty Original/Omicron BA.4-5 is thawed by the NHS’s Specialist Pharmaceutical Logistics (SPL) providers before onward supply to the NHS at 2 to 8°C. The SPLs attach a thaw label to the original carton of multidose vials.
The thaw label applied by SPLs bears the new shelf life at 2 to 8°C. The vials inside the cartons are not labelled with the post thaw expiry date so it is essential that the vials remain within their carton until the point of removal from the fridge for immediate use.
Further information may be found on our Ordering, receipt & storage of COVID-19 Vaccines page.
Carton / Vial Artwork
Carton artwork (Initial supply) Carton artwork (subsequent supply)
Vial artwork (initial and subsequent supply)
Consumables and Patient Information Leaflets
Patient Information Leaflets, and syringes and needles for administration are provided with the vaccines.
Shelf life and storage
- Comirnaty Original/Omicron BA.4-5 may be stored for up to 10 weeks at 2 to 8°C following thawing.
- Within the 10 weeks, it may be stored for up to 24 hours at room temperature (between 8°C and 30°C) following removal from the refrigerator.
- Once punctured the vaccine is physicochemically stable for up to 12 hours at room temperature up to 30°C (within the allowed use period of 10 weeks at 2°C to 8°C and 24 hours pre-puncture at 8°C to 30°).
- However, from a microbiological point of view, the method of puncture does not preclude the risk of microbial contamination, so the vaccine should be used as soon as practically possible e.g. within one work session which would not normally be more than 6 hours.
- The manufacturer’s summary of product characteristics contains additional information on the handling of temperature excursions
Shelf life extensions
From time to time, variations to the marketing authorisation may mean that some batches may have shelf lives beyond the labelled manufacturer’s expiry date. If there are any applicable shelf life extensions, they will be listed on our vaccine expiry extension page.
Transport and movement
Unpunctured vaccine vials stored at 2 to 8°C may be transported throughout their 10 week post-thaw shelf life.
Further information can be found on our Transport of COVID-19 vaccines article and our Mutual Aid guidance.
The punctured vaccine may be transported for up to 6 hours at room temperature. However, the vaccines contain no preservative and the method of puncture cannot preclude the risk of microbial contamination, so SPS advises that transport of punctured vials should not be routine.
The decision to move punctured Comirnaty Original/Omicron BA.4-5 between locations within the same legal entity must include an assessment of the risk of microbial contamination and proliferation versus risk of wastage and loss of opportunities to administer vaccines at alternative locations.
Any decision to move punctured vials must be made locally under the direction of the Chief Pharmacist or site lead pharmacist, taking the specific circumstances into account, and using appropriate risk control measures such as temperature control, infection prevention and control, and a means to identify that the vial has been punctured.
Comirnaty Original/Omicron BA.4-5 is presented as a ‘ready to use’ formulation
Detailed advice about preparation, including a model standard operational procedure can be found on our Comirnaty Original/Omicron BA.4-5 preparation page
It is possible that Comirnaty Original/Omicron BA.4-5 will be handled in the same location as other vaccines. Following the guidance on Handling multiple COVID-19 Vaccines will reduce the risk of errors.
Comirnaty Original/Omicron BA.4-5 has a Marketing Authorisation (PLGB) in the UK.
Some of the vaccine vials being supplied to the UK have been labelled for the European market and so bear an EU marketing authorisation number rather than the PLGB number, and have one or more EU Patient Information Leaflets (PILs) in the carton. These vials are still considered licensed in the UK, but the EU PILs should not be given to patients. GB PILs are provided with the vaccines.
Allergy, excipients and dietary advice
Comirnaty bivalent BA.4-5 is contraindicated in those with a hypersensitivity to the active substance or to any excipient (ingredient) in the vaccine, although revaccination may be possible on the advice of an expert (e.g. allergy specialist). See the Summary of Product Characteristics (SPC) for full details of the active substance and excipients included in the vaccine.
Allergy to any excipient is possible, but polyethylene glycol (PEG) is of particular importance. See the Green Book Chapter 14a: COVID-19 for details on how to manage individuals with a history of allergy.
Comirnaty is free from egg, gluten, nut, soy and latex. However, as with most pharmaceutical products the manufacturer cannot guarantee that minute amounts of substances listed above are not contained in raw materials from their suppliers.
The vaccine does not contain animal products. A statement about animal-derived materials is available via the manufacturer’s medicines information portal.
Refer to the following recommended resources for further information.
Summary of Product Characteristics
Comirnaty Original/Omicron BA.4-5 (15/15 micrograms)/dose dispersion for injection COVID-19 mRNA Vaccine (nucleoside modified)
Manufacturer’s Supporting Information
Cold chain management
- Updated with links to manufacturers information regarding allergen/animal content.