About quadrivale nt influenza
Quadrivalent inactivated influenza vaccine
Used for
- Prevents seasonal influenza caused by four influenza virus strains.
Usual adult dose
One 0.5 mL injection once each influenza season.
Usual dose in children
Children aged 6 months and older: one 0.5 mL dose; first-time recipients under 9 years may need two doses, four weeks apart.
Common side effects
- Injection-site pain, redness, or swelling
- Headache or muscle aches
- Tiredness or fever
Important warnings
- Do not use after a severe allergic reaction to a previous influenza vaccine or a vaccine ingredient.
- Vaccination may be delayed during a moderate or severe illness.
- Seek urgent care for signs of a severe allergic reaction.
Pregnancy
Influenza vaccination is recommended during pregnancy; inactivated vaccines can be given in any trimester.
Breastfeeding
Can be given while breastfeeding.
Interactions
- Immune-suppressing treatments may reduce the vaccine response.
- Other vaccines can generally be given at the same visit, at separate injection sites.
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 It may be incomplete or out of date.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.