About influenza virus inactivated split
Quadrivalent inactivated influenza vaccine
Used for
- Prevention of seasonal influenza in adults and children from six months of age
Usual adult dose
One 0.5 mL injection each influenza season.
Usual dose in children
Ages 6 months–8 years: one or two 0.5 mL injections, at least four weeks apart, depending on prior vaccination and local guidance. Ages 9 years and older: one injection.
Common side effects
- Injection-site pain, redness, or swelling
- Headache, muscle aches, or feeling unwell
- Fever, especially in young children
Important warnings
- Do not use after a severe allergic reaction to a previous influenza vaccine or its ingredients.
- Vaccination may be delayed during a significant febrile illness.
- Seek medical assessment for severe allergic symptoms after vaccination.
Pregnancy
Inactivated influenza vaccines can be given during any trimester; influenza vaccination is recommended during pregnancy.
Breastfeeding
Compatible with breastfeeding.
Interactions
- Tell the vaccination provider about other vaccines or medicines; simultaneous vaccination may be possible at separate injection sites.
- Immunosuppressive treatment may reduce the immune response.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.