Source: creakyjoints.org/living-wit...
Relevant info:
The Food & Drug Administration (FDA)
Fact sheets provided by the FDA for the Pfizer-BioNTech and Moderna vaccines state that you should not get the vaccine if you have had a severe allergic reaction to any ingredient in the vaccine, or if you had a severe allergic reaction after a previous dose of the vaccine. The vaccine requires two doses given three weeks apart (Pfizer) and four weeks apart (Moderna).
Here are the ingredients in the Pfizer vaccine:
mRNA
Lipids ((4-hydroxybutyl)azanediyl)bis(hexane-6,1-diyl)bis(2-hexyldecanoate), 2 [(polyethylene glycol)-2000]-N,N-ditetradecylacetamide, 1,2-Distearoyl-sn-glycero-3- phosphocholine, and cholesterol)
Potassium chloride
Monobasic potassium phosphate
Sodium chloride
Dibasic sodium phosphate dihydrate
Sucrose
Here are the ingredients in the Moderna vaccine:
Messenger ribonucleic acid (mRNA)
Lipids (SM-102, polyethylene glycol [PEG] 2000 dimyristoyl glycerol [DMG], cholesterol, and 1,2-distearoyl-sn-glycero-3-phosphocholine [DSPC])
Tromethamine
Tromethamine hydrochloride
Acetic acid
Sodium acetate
Sucrose