Myocarditis and pericarditis are inflammatory heart conditions. You can read more about the vaccine ingredients on the European Medicine Agency's website.Ĭomirnaty (Pfizer/BioNTech) COVID-19 vaccine. The Pfizer/BioNTech COVID-19 vaccine does not contain eggs, preservatives or latex. Ingredients of Pfizer/BioNTech COVID-19 vaccine had myocarditis or pericarditis (inflammation of the heart muscle) after a previous dose of any COVID-19 vaccine.have had a severe allergic reaction (anaphylaxis) in the past, including to any other vaccine or medication.Talk to your doctor before getting this vaccine if you: have had a severe allergic reaction after Trometamol (one of the contents in contrast dye used in MRI radiological studies).have had a severe allergic reaction to a previous dose of this vaccine or the Moderna vaccine.have been told by a doctor that you should not get this vaccine or the Moderna vaccine - they are both mRNA vaccines.have had a severe allergic reaction to any of the ingredients in this vaccine - including polyethylene glycol or PEG.Most people can safely get the Pfizer/BioNTech COVID-19 vaccine.īut this vaccine is not recommended if you: Pfizer/BioNTech - extremely rare side effects Signs of myocarditis in younger children may be more general including: palpitations (a forceful heartbeat that may be irregular).Get urgent medical help if you get any of these symptoms in the weeks after the Pfizer/BioNTech vaccine: We do not know the risk of myocarditis or other rare side effects after a booster dose yet. 1 additional case for every 17,500 men aged 16 to 24 (within 28 days).1 additional case for every 38,000 men aged 12 to 29 (within 7 days).The risk of these very rare conditions is higher in young men.Ģ European studies have estimated the risk of myocarditis in men, after the second dose of the vaccine as: They have mostly been seen within 14 days of getting the vaccine. These conditions are more likely to happen after the second dose. Very rare side effects may affect up to 1 in 10,000 people. The Pfizer/BioNTech COVID-19 vaccine is called Comirnaty.

Pfizer/BioNTech COVID-19 vaccine side effects The side effects of the COVID-19 vaccines used in Ireland are listed below. If you have had anaphylaxis (severe allergic reaction) to Trometamol, you should not get the adapted mRNA vaccines. The safety of the vaccines will continue to be monitored by the European Medicines Agency (EMA).

We expect that the side effects of the adapted (bivalent) mRNA vaccines will be similar to the previous Pfizer/BioNTech and Moderna COVID-19 vaccines. There have not been any unexpected side effects for people who have had multiple boosters. Many countries have given multiple doses of COVID-19 vaccines. If you feel uncomfortable, take paracetamol or ibuprofen following the instructions on the box or leaflet. This usually happens within 48 hours of getting a vaccine. It’s common to develop a fever (temperature of 38 degrees Celsius or above) after COVID-19 vaccination. Your vaccinator is trained to treat allergic reactions. Serious side effects, like a severe allergic reaction, are extremely rare. If you are concerned about side effects, phone your GP for advice. Most of these are mild to moderate and short-term. Like all medicines, COVID-19 vaccines can cause side effects.

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