TRIVALENT INFLUENZA VACCINE (SPLIT VIRION INACTIVATED) HIGH DOSE SUSPENSION FOR INJECTION - patient leaflet, side effects, dosage

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Patient leaflet - TRIVALENT INFLUENZA VACCINE (SPLIT VIRION INACTIVATED) HIGH DOSE SUSPENSION FOR INJECTION

1. what trivalent influenza vaccine (split virion, inactivated) high dose is and what it is used for

Trivalent Influenza Vaccine (Split Virion, Inactivated) High Dose is a vaccine. This vaccine helps to protect persons of 65 years of age and older against influenza (flu). The use of Trivalent Influenza Vaccine (Split Virion, Inactivated) High Dose should be based on official recommendations.

When a person is given Trivalent Influenza Vaccine (Split Virion, Inactivated) High Dose, the immune system (the body’s natural defence system) will produce its own protection (antibodies) against the disease. None of the ingredients in the vaccine can cause flu.

Flu is a disease that can spread rapidly and is caused by different types of strains that can change every year. Due to this potential change in circulating strains on a yearly basis, as well as the duration of protection intended by the vaccine, vaccination is recommended every year. The greatest risk of catching flu is during the cold months between October and March. If you were not vaccinated in the autumn, it is still sensible to be vaccinated up until the spring since you run the risk of catching flu until then. Your doctor will be able to recommend the best time to be vaccinated.

Trivalent Influenza Vaccine (Split Virion, Inactivated) High Dose is intended to protect you against the three strains of virus contained in the vaccine about 2 to 3 weeks after the injection. In addition, if you are exposed to flu immediately before or after your vaccination, you could still develop the illness as the incubation period for flu is a few days.

The vaccine will not protect you against the common cold, even though some of the symptoms are similar to flu.

2. what you need to know before you use trivalent influenza vaccine (split virion, inactivated) high dose

To make sure that Trivalent Influenza Vaccine (Split Virion, Inactivated) High Dose is suitable for you, it is important to tell your doctor or pharmacist if any of the points below apply to you. If there is anything you do not understand, ask your doctor or pharmacist to explain.

Do not use Trivalent Influenza Vaccine (Split Virion, Inactivated) High Dose:

– if you are allergic to:

the active substances, or
any of the other ingredients of this vaccine (listed in Section 6), or
any component that may be present in very small amounts such as eggs (ovalbumin, chicken proteins), formaldehyde and octoxinol-9,
– if you have an illness with a high or moderate temperature or an acute infection, the vaccination should be postponed until after you have recovered.

Warnings and precautions

Talk to your doctor, pharmacist or nurse before using Trivalent Influenza Vaccine (Split Virion, Inactivated) High Dose.

You should tell your doctor before vaccination if you have:

– a poor immune response (immunodeficiency or taking medicines affecting the immune system),
– bleeding problem or bruising easily.

Your doctor will decide if you should receive the vaccine.

Fainting can occur following, or even before, any needle injection. Therefore tell your doctor or nurse if you fainted with a previous injection.

As with all vaccines, Trivalent Influenza Vaccine (Split Virion, Inactivated) High Dose may not fully protect all persons who are vaccinated.

If, for any reason, you have a blood test within a few days following a flu vaccination, please tell your doctor. This is because false positive blood test results have been observed in a few patients who had recently been vaccinated.

Children

This vaccine is only for use in adults aged 65 years and older.

Trivalent Influenza Vaccine

(Split Virion, Inactivated) High Dose suspension for injection in pre-filled syringe

Other medicines and Trivalent Influenza Vaccine (Split Virion, Inactivated) High Dose

Tell your doctor or pharmacist if you are receiving, have recently received or might receive any other vaccines or any other medicines.

– If Trivalent Influenza Vaccine (Split Virion, Inactivated) High Dose needs to be given at the same time as other vaccines, the vaccines should always be administered in separate limbs, and it should be noted that the side effects may be more intense.
– The immunological response may decrease in case of immunosuppressant treatment, such as corticosteroids, cytotoxic drugs or radiotherapy.

Pregnancy and breast-feeding

Trivalent Influenza Vaccine (Split Virion, Inactivated) High Dose is only indicated for use in adults aged 65 years and older.

If you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before using this vaccine. Your doctor/pharmacist will help you decide if you should receive Trivalent Influenza Vaccine (Split Virion, Inactivated) High Dose.

Driving and using machines

Trivalent Influenza Vaccine (Split Virion, Inactivated) High Dose has no or negligible influence on the ability to drive or use machines.

Trivalent Influenza Vaccine (Split Virion, Inactivated) High Dose contains sodium

This medicine contains less than 1mmol sodium

(3.3 mg) per dose, i.e. essentially ‘sodium- free’.

3. how to use trivalent influenza vaccine (split virion, inactivated) high dose

Adults aged 65 years and over receive one 0.5 ml dose.

How Trivalent Influenza Vaccine (Split Virion, Inactivated) High Dose is given

Your doctor, pharmacist or nurse will administer the recommended dose of the vaccine as an injection into the muscle.

If you have any further questions on the use of this product, ask your doctor or pharmacist.

4. possible side effects

Like all medicines, this vaccine can cause side effects, although not everybody gets them.

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Allergic reactions

See a doctor IMMEDIATELY if you experience:

– Severe allergic reactions:

that may lead to medical emergency with low blood pressure, rapid, shallow breathing, rapid heart rate and weak pulse, cold, clammy skin, dizziness, that may lead to collapse (shock).
swelling most apparent in the head and neck, including the face, lips, tongue, throat or any other part of the body and which may cause difficulty in swallowing or breathing (angioedema).

See a doctor if you experience:

Allergic reactions such as skin reactions that may spread throughout the body including itching, hives, rash, redness.

Other side effects reported

Very common (may affect more than 1 in 10 people):

– Reactions at the injection site: pain, redness (erythema)
– Generally feeling unwell (malaise), headache, muscular pain (myalgia)

Common (may affect up to 1 in 10 people):

– Swelling at the injection site, fever

Uncommon (may affect up to 1 in 100 people):

– Reactions at the injection site: bruising, hardness (induration)
– Chills, fatigue, feeling sick (nausea), diarrhoea, vomiting, dizziness, cough, pain in extremities
– Swelling of the glands in the neck, armpit or groin (lymphadenopathy)

Rare (may affect up to 1 in 1000 people):

– Flushing, pruritus

Not known: frequency cannot be estimated from the available data

– Reduction in the number of certain types of particles in the blood called platelets; a low number of these can result in excessive bruising or bleeding (thrombocytopenia)
– Numbness or pins and needles sensation (paraesthesia),
– Neurological disorders that may result in stiff neck, confusion, numbness, pain and weakness of the limbs, loss of balance, loss of reflexes, paralysis of part or all the body (encephalomyelitis and transverse myelitis, neuritis,

Guillain-Barre Syndrome), fits (convulsions including febrile convulsions), fainting (syncope) shortly after vaccination

– Blood vessel inflammation (vasculitis) which may result in skin rashes and in very rare cases in temporary kidney problems, blood vessel opening (vasodilatation)
– Joint pain (arthralgia)
– Abnormal lack of energy (asthenia), chest pain
– Excess of blood in the white of the eye (ocular hyperaemia)
– Inflammation of the throat and the nose (pharyngitis, rhinitis), wheezing, throat tightness, difficulty breathing (dyspnea).

Most side effects usually occurred within the 3 days following vaccination, and resolved within 3 days. The intensity of these side effects was mild to moderate.

Reporting of side effects

If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the national reporting system (see details below). By reporting side effects you can help provide more information on the safety of this medicine.

United Kingdom

Medicines and Healthcare products Regulatory Agency (MHRA): Yellow Card Scheme at or search for MHRA Yellow Card in the Google Play or Apple App Store.

5. how to store trivalent influenza vaccine (split virion, inactivated) high dose

Keep this vaccine out of the sight and reach of children.

Do not use this vaccine after the expiry date which is stated on the label and carton after EXP.

Store in a refrigerator (2°C – 8°C). Do not freeze. Keep the syringe in the outer carton in order to protect from light.

Do not throw away any vaccines via wastewater or household waste. Ask your pharmacist how to throw away vaccines you no longer use. These measures will help protect the environment.

6. contents of the pack and other information

What Trivalent Influenza Vaccine (Split Virion, Inactivated) High Dose contains

– The active substances are: Influenza virus (inactivated, split) of the following strains*:

A/Guangdong-Maonan/SWL1536/2019 (H1N1)pdm09 – like strain (A/Guangdong-Maonan/SWL1536/2019, CNIC-1909)....................................60 micrograms HA

A/Hong Kong/2671/2019 (H3N2) – like strain (A/Hong Kong/2671/2019, IVR-208)......................................................60 micrograms HA

B/Washington/02/2019 – like strain (B/Washington/02/2019, wild type)......................................................60 micrograms HA**

Per 0.5 ml dose

* propagated in embryonated chicken eggs and inactivated with formaldehyde
* * haemagglutinin

What Trivalent Influenza Vaccine (Split Virion, Inactivated) High Dose looks like and contents of the pack

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Frequently Asked Questions

What is the Trivalent Influenza Vaccine High Dose used for?

The Trivalent Influenza Vaccine High Dose is used to help protect against three strains of influenza virus that may circulate during the flu season.

Who should get the Trivalent Influenza Vaccine High Dose?

It is especially recommended for older adults, typically those aged 65 and over, as they are at higher risk for serious complications from the flu.

How does the High Dose version differ from regular flu vaccines?

The High Dose version contains a higher concentration of antigens, which can lead to a stronger immune response in older adults.

When should I receive my flu shot?

It is best to get your flu shot in early fall before the influenza viruses start spreading widely.

Can I receive the Trivalent Influenza Vaccine if I have a cold?

Yes, you can still get vaccinated if you have a mild illness. However, if you have a high fever or severe illness, it's advisable to wait until you're better.

Is it safe for people with allergies to get this vaccine?

If you have allergies, particularly to eggs or any components of the vaccine, consult your healthcare provider before getting vaccinated.

How effective is the Trivalent Influenza Vaccine High Dose?

The effectiveness can vary each year depending on how well the vaccine matches the circulating viruses, but it generally reduces the risk of flu-related illness.

What side effects should I expect after receiving this vaccine?

Common side effects include soreness at the injection site, headache, muscle aches, and sometimes mild fever. Serious side effects are rare.

Can I get the flu from the vaccine?

No, you cannot get the flu from this vaccine as it contains inactivated virus components that cannot cause illness.

How long does immunity last after getting vaccinated?

Immunity typically develops about two weeks after vaccination and can last throughout the flu season.

Do I need to get vaccinated every year?

Yes, annual vaccination is recommended because influenza viruses change constantly and new vaccines are developed each year.

Is there anyone who should not take this vaccine?

People who have had severe allergic reactions to previous influenza vaccinations or specific ingredients should not receive this vaccine. Consult with your doctor.

What should I do if I miss my flu shot deadline?

Getting vaccinated later in the season may still provide protection, so don’t hesitate to schedule an appointment even if flu season has started.

Can I take pain relievers after getting vaccinated?

Yes, over-the-counter pain relievers like acetaminophen or ibuprofen can be taken to alleviate discomfort if needed.

Will getting vaccinated interfere with other medications I'm taking?

Generally, there are no known interactions with most medications. However, consult your healthcare provider for personalized advice.

Are there any special considerations for pregnant women regarding this vaccine?

The Trivalent Influenza Vaccine is considered safe during pregnancy and is recommended to protect both mother and baby from influenza complications.

What should I do if I experience severe side effects after vaccination?

Seek immediate medical attention if you experience severe allergic reactions such as difficulty breathing or swelling of the face and throat after vaccination.

Can I travel after receiving my flu shot?

Yes, you can travel after receiving your vaccination. It’s a good idea to be protected before traveling during flu season.

Where can I get the Trivalent Influenza Vaccine High Dose?

You can obtain it at pharmacies, clinics, or your doctor's office; check with local healthcare providers for availability.

Is there a cost associated with getting vaccinated with this high-dose formula?

Costs may vary based on location and insurance coverage; many health insurance plans cover flu vaccinations fully.