Influvac Tetra 2026/2027 Vaccine

• For the prevention of seasonal influenza (flu) in adults and in children from six months of age.
• Particularly for people at increased risk of complications from influenza, including older adults, young children, pregnant women, and people with long-term conditions such as diabetes, heart disease, chronic kidney disease, chronic lung disease including asthma and COPD, liver disease, or a weakened immune system.

• If you are allergic to the active substances, to any other ingredient of Influvac Tetra 2026/2027 Vaccine, or to residues that may be present in trace amounts, such as egg protein (ovalbumin, chicken protein), formaldehyde, cetyltrimethylammonium bromide, polysorbate 80 or gentamicin.
• If you have had a severe allergic reaction (anaphylaxis) after a previous dose of any influenza vaccine.

• Pain, redness, swelling, hardening or bruising at the injection site
• Headache
• Muscle pain and joint pain
• Tiredness and generalised weakness
• Mild fever, chills or shivering
• Sweating
• Feeling generally unwell
• Nausea
• In infants and young children, drowsiness, irritability and reduced appetite

• Dizziness
• Swollen glands in the neck, armpit or groin
• Skin rash or itching
• Fainting or feeling faint around the time of the injection, usually related to the injection procedure

• Severe allergic reaction, with swelling of the face, lips, tongue or throat, difficulty in breathing or swallowing, a widespread rash, a sudden drop in blood pressure or collapse
• Seizures or other serious neurological symptoms
• A high fever or other symptom that is severe or worsening

Other General Warnings

• You or your child has a poor immune response (immunodeficiency) or is taking medications that may affect the immune system.
• You or your child experiences issues with bleeding or bruising easily.
• You have previously experienced symptoms such as feeling faint, fainting, or other stress-related reactions either before or after any needle injection.
• You or your child has blood tests scheduled within a few days after vaccination.
• You or your child has thrombocytopenia or any coagulation disorder.

• Influvac Tetra 2026/2027 Vaccine will be administered by your doctor or nurse. Do not self-inject this vaccine.
• It is given as an injection into a muscle, usually the upper arm, or, in infants and young children, the thigh.
• Tell the doctor or nurse before the injection about any allergy, any fever on the day, any bleeding problem, and any medicine that affects your immune system.
• Stay where you were vaccinated for a short observation period afterwards, and follow any aftercare instructions you are given.
• Keep the vaccination record or card you are given, and bring it to your next appointment.
• Vaccination is repeated each season. Ask your doctor when the next dose is due.

• Keep it refrigerated between 2°C and 8°C.
• Do not freeze. Discard any vaccine that has been frozen, even if it has thawed and looks normal.
• Store it in the original carton to protect it from light.
• Keep it out of the sight and reach of children and pets.
• Do not use the vaccine after its expiry date, or if the packaging is damaged or the contents look unusual.

• This is an annual vaccine. Have it every year, as circulating influenza strains change and protection fades over time.
• Protection takes about two weeks to build, so plan vaccination before the season starts rather than during an outbreak.
• Influenza activity varies across India, so vaccination timing may differ by region.
• The vaccine is inactivated and cannot give you influenza. Feeling mildly unwell afterwards is the immune system responding.
• It does not protect against the common cold or COVID-19, and it does not prevent every case of influenza, though illness is usually milder.
• Tell your healthcare provider about any allergy or previous reaction to a vaccine before you are vaccinated.
• If you have a high fever on the day, your provider will usually postpone vaccination until you have recovered.
• Move the vaccinated arm normally and apply a cool compress if the site is sore. Ask your doctor before taking a painkiller.
• If you have a blood test booked in the days after vaccination, mention that you have just been vaccinated.
• Seek help immediately for swelling of the face or throat, difficulty in breathing, a widespread rash or fainting.
• Vaccination protects those around you too, including babies too young to be vaccinated and people who cannot mount a strong response.
• Keep your vaccination record and bring it to your next appointment.

Missed a Dose

Overdose

• Influvac Tetra 2026/2027 Vaccine helps your immune system recognise influenza viruses. It contains purified antigens from inactivated influenza viruses, including haemagglutinin and neuraminidase, so it cannot cause influenza.
• The vaccine helps your body produce antibodies. If you later come into contact with a matching or closely related influenza virus, these antibodies may help prevent infection or reduce its severity. Protection develops over about 2 weeks.
• Because influenza viruses change over time, seasonal vaccines are regularly updated based on WHO recommendations for the relevant season.

Interactions with other medicines

• Tell your doctor about all medicines, supplements, or herbal products you are currently taking or might take to avoid possible interactions.
• If Influvac Tetra 2026 vaccine is given at the same time as other vaccines, vaccination should be done on different limbs.
• The ability of the body to produce antibodies (proteins that protect the individual against infection caused by viruses) may be decreased if you or your child is using medicines that suppress the immune system.

Interactions with food items