Influvac Tetra
Influvac Tetra is a vaccine that helps protect you and your child from the flu, especially if you are at high risk for complications.
Form
injektioneste, suspensio, esitäytetty ruisku
Strength
15 mikrog HA / 0.5 ml
Active Ingredient
Influenza A virus H1N1, surface antigen, inactivated
Manufacturer
Viatris Oy
How to Use
Dosage
Adults and children aged 6 months to 17 years receive one 0.5 ml dose.
Method
A doctor or nurse will give the vaccine as an injection into a muscle or deep under the skin.
Important
One 0.5 ml dose per day when administered.
Possible Side Effects
COMMON
- •Headache
- •Fatigue
- •Pain at the injection site
- •Sweating
- •Muscle pain
- •Joint pain
- •General discomfort
- •Chills
- •Redness at the injection site
- •Swelling at the injection site
- •Bruising at the injection site
- •Hardening at the injection site
- •Drowsiness
- •Loss of appetite
- •Diarrhea
- •Vomiting
- •Irritability or restlessness
- •Fever
- •Nausea
- •Stomach pain
RARE
- •Skin reactions like itching, hives, or rash that can spread across the body
- •Blood vessel inflammation (vasculitis) that can cause rash and, rarely, temporary kidney problems
- •Nerve pain, tingling or numbness, seizures with fever, or nerve disorders that may cause stiff neck, confusion, limb pain/weakness, balance issues, or paralysis (e.g., Guillain-Barré syndrome)
- •Temporary decrease in platelets (can cause increased bruising/bleeding) or temporary swelling of glands in the neck, armpit, or groin
Important Warnings
- Do not use if you or your child are allergic to the active ingredients or any other components of the vaccine, including egg, formaldehyde, cetyltrimethylammonium bromide, polysorbate 80, or gentamicin.
- If you or your child have a high fever or an acute infection, vaccination should be postponed until recovery.
- Tell your doctor if you or your child have a weakened immune system or are taking medicines that affect the immune system.
- Inform your doctor if you or your child have bleeding problems or bruise easily.
- Fainting or other stress-related reactions can occur after a needle injection; tell your doctor or nurse if you or your child have experienced this before.
Show 2 more warnings
- If you or your child need a blood test within a few days after vaccination, tell your doctor, as the flu shot can sometimes cause false positive results.
- Like all vaccines, Influvac Tetra may not provide full protection to everyone who gets vaccinated.