Fluarix Tetra should be administered as a single 0.5 ml injection.
Children 6 months to less than 9 years of age who have not previously been vaccinated against influenza should receive a second dose of 0.5 ml after an interval of at least 4 weeks.
Children aged <6 months: The safety and efficacy of Fluarix Tetra in children aged <6 months have not been established.
Vaccination should be carried out by intramuscular injection preferably into the deltoid muscle or anterolateral thigh (depending on the muscle mass).