MedicinehospitalEssential

Nucleoside modified

An mRNA vaccine (Comirnaty) that protects against COVID-19.

Clinical information

Common uses

preventing COVID-19 in people 65 and older
preventing COVID-19 in others at high risk

Common side effects

pain at the injection site
tiredness
headache
chills
muscle pain or fever

Cautions

rare risk of myocarditis and pericarditis (heart inflammation)

Pregnancy: limited data — talk to your doctor

Reference information, not medical advice — always follow your doctor or pharmacist. Source: DailyMed, dailymed.nlm.nih.gov, Comirnaty (COVID-19 vaccine, mRNA) label (Pfizer), setid 48c86164-de07-4041-b9dc-f2b5744714e5 (accessed 2026-08-16)

Approved brands & formulations2

Brand name	Dosage form	Strength	Importer	Category
Pfizer/BioNTech: BNT162b2 (may also be referred to as Tozinameran, Comirnaty)	Parenteral ( Vaccine )	30 μg/dose	—	hospital
Pfizer/BioNTech: BNT162b2 (may also be referred to as Tozinameran, Comirnaty)	Parenteral ( Vaccine )	10mcg	—	hospital