“As vaccine roll-out begins in Canada, Canadians may be wondering about the risks of allergic reactions,” the agency said. “In Canada, all vaccines carry a warning about the risk of serious allergic reactions, including anaphylaxis, and immunization clinics are equipped to manage these rare events.”

That’s why they cautioned individuals with allergies to any of the ingredients in the Pfizer-BioNTech vaccine to avoid receiving the shot.

Health Canada also listed the ingredients in the vaccine, which are as follows:

Medicinal ingredient:

mRNA
Non-medicinal ingredients:

ALC-0315 = ((4-hydroxybutyl)azanediyl)bis(hexane-6,1-diyl)bis(2-hexyldecanoate
ALC-0159 = 2-[(polyethylene glycol)-2000]-N,N-ditetradecylacetamide
1,2-Distearoyl-sn-glycero-3-phosphocholine
cholesterol
dibasic sodium phosphate dihydrate
monobasic potassium phosphate
potassium chloride
sodium chloride
sucrose water for injection

https://www.ctvnews.ca/health/coronavirus/health-canada-warns-people-with-allergies-to-pfizer-covid-19-vaccine-ingredients-to-not-get-it-1.5228742