Medical experts are warning people who have a history of severe allergic reactions (such as anaphylactic shock) to vaccines, food, or medications to avoid getting the new Covid vaccination until they first discuss their situation with their healthcare provider. The warning follows severe allergic reactions suffered by at least two people after receiving the Covid vaccine from Pfizer in early December 2020 (source). The reason for the warning is that some people may have a severe allergic reaction to the primary ingredient (for the Pfizer vaccine that is BNT162b2 RNA) or to the secondary ingredients (commonly called “inactive” ingredients because they support the delivery and/or activation of a drug rather than act as the primary medicating ingredient) in Pfizer’s or any of the other manufacturers’ vaccines. The secondary ingredients for the Pfizer Covid vaccination are listed below.
Pfizer /BioNTech’s vaccine contains a range of ingredients, alongside the active substance, called BNT162b2 RNA.
The other ingredients are:
– ALC-0315 = (4-hydroxybutyl)azanediyl)bis(hexane*-6,1-diyl)bis(2-hexyldecanoate),
– ALC-0159 = 2[(polyethylene glycol*)-2000]-N,N-ditetradecylacetamide,
– cholesterol, 5
– potassium chloride,
– potassium dihydrogen phosphate*,
– sodium chloride,
– disodium hydrogen phosphate* dihydrate,
*A number of these secondary, inactive ingredients have been linked to adverse health reactions/conditions in previous studies of food additives. Source