What are the ingredients of the COVID vaccine from Pfizer?

The ingredients in the Pfizer COVID vaccine include messenger RNA, lipids, potassium chloride, sodium dibasic phosphate dihydrate, sodium chloride, potassium monobasic phosphate, sucrose, and a diluent composed of sterile water and sodium chloride. These ingredients are common in other pharmaceutical products and vaccines, helping to maintain stability and effectiveness. The vaccine can still be administered even if the expiration date is approaching, as long as it has not been exceeded.