Information for consumers
Pfizer-BioNTech COVID-19 Vaccine is a vaccine used to prevent COVID-19 disease caused by the SARS-CoV-2 virus.
Health Canada authorized the sale of this COVID-19 vaccine under an Interim Order, on December 9, 2020. Since the time of authorization, new information about dosing and side effects has been identified.
In particular, cases of severe allergic reactions have been reported in some people receiving the vaccine outside of clinical trials. These reactions are not unexpected and do not affect Health Canada recommendations regarding the use of this vaccine.
There is a remote chance that Pfizer-BioNTech COVID-19 Vaccine could cause a severe allergic reaction. People who are allergic to any of the ingredients in this vaccine should not receive the vaccine. People that experienced a severe allergic reaction after their first dose of Pfizer-BioNTech COVID-19 Vaccine should not receive a second dose.
A severe allergic reaction would usually occur within a few minutes to one hour after getting a dose of Pfizer-BioNTech COVID-19 Vaccine. For this reason, vaccination providers should ask vaccine recipients to stay at the place where they received their vaccine for monitoring after vaccination. If vaccine recipients develop any symptoms that could be an allergic reaction, healthcare professionals should provide medical attention right away.
Symptoms of an allergic reaction include:
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hives (bumps on the skin that are often very itchy)
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swelling of the face, tongue or throat
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difficulty breathing
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a fast heartbeat
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dizziness and weakness
Information for healthcare professionals
The use of low dead-volume syringes and/or needles allows the extraction of a 6
th dose of 0.3 mL of the diluted Pfizer-BioNTech COVID-19 Vaccine. If standard syringes and needles are used, there may not be sufficient volume to extract a 6
th dose. In order to ensure consistent withdrawal of 6 doses of 0.3 mL, it is important to minimize volume loss during dose extractions.
Healthcare professionals are advised that (regardless of the type of syringe and/or needle used):
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each dose must contain 0.3 mL of the vaccine.
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if the amount of vaccine remaining in the vial cannot provide a full dose of 0.3 mL, to discard the vial and any excess volume.
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excess vaccine from multiple vials should not be pooled to create extra doses.
Healthcare professionals should also be aware that severe allergic reactions, including anaphylaxis, have been reported during mass vaccination outside of clinical trials. This new information does not change the benefit-risk profile of this product.
Healthcare professionals are advised that:
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as with all injectable vaccines, appropriate medical treatment and supervision should always be readily available in case of a rare anaphylactic event following the administration of this vaccine.
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people who receive the vaccine should be kept under observation for at least 15 minutes after immunization.
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30 minutes is a preferred interval when there is a specific concern about a possible vaccine reaction.
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a second dose of the vaccine should not be given to those who have experienced anaphylaxis to the first dose of Pfizer-BioNTech COVID-19 Vaccine.
Action taken by Health Canada
On September 16, 2020, Canada’s Minister of Health approved an I
nterim Order Respecting the Importation, Sale and Advertising of Drugs for Use in Relation to COVID-19 to expedite the authorization for the importation, sale, and advertising of drugs used in relation to COVID-19 while taking into consideration urgent public health needs. The Interim Order will expire after one year. Health Canada authorized the use of Pfizer-BioNTech COVID-19 Vaccine under the Interim Order on December 9, 2020, and this vaccine has been added to the “
List of authorized drugs, vaccines and expanded indications” for COVID-19.
An alignment with the global label update to 6 doses has been implemented to minimize vaccine wastage and facilitate access to the vaccine supply during the pandemic. Health Canada, in collaboration with Pfizer/BioNTech, has updated the PM for Pfizer-BioNTech COVID-19 Vaccine (COVID-19 mRNA Vaccine) to reflect this new information. Health Canada has also authorized updates to the global vial and carton labels.
Health Canada also continues to closely monitor reports of severe allergic reactions associated with Pfizer-BioNTech COVID-19 Vaccine. Health Canada will take action if any new safety issues are confirmed.
Health Canada has worked with Pfizer Canada ULC to prepare this alert for the Pfizer-BioNTech COVID-19 Vaccine. Health Canada is communicating this important safety information to healthcare professionals and Canadians via the
Recalls and Safety Alerts Database on the Healthy Canadians Web Site. This communication update will be further distributed through the MedEffect™ e-Notice email notification system, as well as through social media channels, including LinkedIn and Twitter.