Side effects that have been reported with the Pfizer-BioNTech COVID-19 Vaccine include:
- injection site pain
- muscle pain
- joint pain
- injection site swelling
- injection site redness
- feeling unwell
- swollen lymph nodes (lymphadenopathy)
There is a remote chance the Pfizer-BioNTech COVID-19 vaccine could cause a severe allergic reaction. A severe allergic reaction would usually occur within a few minutes to one hour after getting a dose of the Pfizer-BioNTech COVID-19 Vaccine.
Signs of a severe allergic reaction can include:
- Difficulty breathing
- Swelling of your face and throat
- A fast heartbeat
- A bad rash all over your body
- Dizziness and weakness
These may not be all the possible side effects of the Pfizer-BioNTech COVID-19 Vaccine. Serious and unexpected side effects may occur. Pfizer-BioNTech COVID-19 Vaccine is still being studied in clinical trials.