Vaccine
Influenza vaccine (live attenuated, intranasal)
Brand names: Fluenz Tetra
Adult dose
Dose: Children 2–17y: 0.2mL intranasal (0.1mL each nostril) annually
Route: Intranasal
Frequency: annually
Clinical pearls
- Routine UK childhood programme — preferred for 2–17y where eligible
Contraindications
- Severe immunosuppression
- Severe egg allergy with anaphylaxis
- Children on high-dose salicylates
- Active wheeze/asthma exacerbation
- Pregnancy (in those treated as adults)
Side effects
- Nasal congestion
- Headache
- Fever
- Reduced appetite
Interactions
- Live vaccines
- Antivirals (avoid 48h before to 2 weeks after)
Reference: BNF; UK Green Book; JCVI; https://bnf.nice.org.uk/drugs/influenza-vaccine-live/. Verify against your local formulary and the latest BNF before prescribing.
Related
Curated clinical cross-links plus same-class fallbacks.
Calculators
Drugs