Experts say the ingredients in the COVID-19 vaccine developed by Pfizer and German partner BioNTech, which was authorized Friday by the U.S. Food and Drug Administration, looks pretty standard for a vaccine.
In a letter to the FDA, Pfizer listed the ingredients in its vaccine. They can be organized into four basic categories:
lipids (0.43 mg (4-hydroxybutyl)azanediyl)bis(hexane-6,1-diyl)bis(2-hexyldecanoate), 0.05 mg 2[(polyethylene glycol)-2000]-N,N-ditetradecylacetamide, 0.09 mg 1,2-distearoyl-sn-glycero-3- phosphocholine, and 0.2 mg cholesterol)
0.01 mg potassium chloride
0.01 mg monobasic potassium phosphate
0.36 mg sodium chloride
0.07 mg dibasic sodium phosphate dihydrate
“Nothing too surprising there,” said Dr. Matthew Heinz, a hospitalist based in Tucson, Arizona. “It’s a normal way of packaging up medications for people.”
The only active ingredient in the vaccine is the messenger RNA encoding the viral spike of SARS-CoV-2.