Influvax Tetra 0.5ml

Uses of Influvax Tetra

• Influenza (Flu)

Are there any missed dose instructions of Influvax Tetra?

• The missed dose should be taken as soon as possible. It is recommended to skip your missed dose if it is time for your next scheduled dose.

Are there any overdose instructions for Influvax Tetra?

• Consult your doctor in case of an overdose.

How does Influvax Tetra work?

Influvax Tetra is a group of substances that act to sensitize the natural immune system of the body towards the influenza virus so that if infected, the body’s immune system can neutralize the virus and prevent the development of influenza.

Pharmacology

The influenza virus vaccine inactivated promotes immunity to the influenza virus by inducing specific antibody formation.

Dosage of Influvax Tetra

Adult Dose

• Intramuscular Adult: One dose of 0.5 ml. every year.

Child Dose

• Intramuscular Children over 3 years of age: one dose of 0.5 ml. every year. Children from 6 to 36 months of age: 1 dose of 0.25 ml. every year. For Children <9 years who have not previously been vaccinated: a 2nd dose should be given after an interval of at least 4 weeks.

The influenza vaccine is given yearly.

• For IIV, the dose is
• 0.25 mL or 0.50 mL IM (depending on vaccine) for children aged 6 to 35 months
• 0.5 mL IM for people ≥ 3 years
• 0.1 mL for people aged 18 to 64 years, given intradermally
• Children age 6 months to 8 years who have received fewer than 2 influenza vaccine doses or whose influenza vaccination history is unknown should receive 2 doses, separated by at least 4 weeks.
• The smaller, intradermal dose can be used to conserve vaccines in times of shortage.
• For LAIV, the dose is 0.1 mL, sprayed into each nostril (the total dose is 0.2 mL).
• For RIV4, the dose is 0.5 mL IM

Administration of Influvax Tetra

Intramuscular injection (IM) on the deltoid. This vaccine should be administered before the beginning of the influenza season or as required by the epidemiological situation. Vaccination should be repeated every year with an age-appropriate dose of vaccine of updated antigen composition.

Interaction

Immunosuppressants, antineoplastics, or high doses of corticosteroids may reduce response to vaccines. Increased antibody response with aldesleukin and aspirin. May increase the anticoagulant effects of warfarin. 

Annual vaccination against influenza with an age-appropriate formulation is recommended

• For all people ≥ 6 months of age who do not have a contraindication
• Inactivated influenza vaccine (IIV) can be given to all people ≥ 6 months, including pregnant women.
• Adults ≥ 65 years should be given high-dose IIV. The high dose is recommended only for those ≥ 65 years.
• The recombinant influenza vaccine (RIV4) can be used in people aged 18 to 49 years.
• Live-attenuated influenza vaccine (LAIV) can be given to healthy people aged 2 to 49 years who are not pregnant and who do not have immunocompromising conditions. Safety of LAIV has not been established in people with disorders that predispose them to complications from influenza, including advanced lung disease or asthma.

Healthcare workers who care for immunocompromised people (ie, those who require care in a protected environment) should be given IIV or RIV4 rather than LAIV (or they should avoid contact with the immunocompromised people for 7 days after getting the vaccine).

Contraindication

Known anaphylactic hypersensitivity reactions to egg proteins (eggs or egg products), chicken proteins, or any other component of the vaccine including traces (formaldehyde, octoxinol 9 (Triton X-100), and neomycin). Immunization should not be performed during a febrile or acute illness.

Side Effect of Influvax Tetra

A patient can suffer from the following side effects:

• Headache
• Weakness
• Injection Site Allergic Reaction

In children under 5 years of age, systemic reactions (e.g. fever, malaise, myalgia) may be more pronounced. Local Reactions: Erythema (redness), swelling, pain, ecchymosis, induration. Systemic Reactions: Fever, malaise, shivering, fatigue, headache, sweating, joint and muscular pain. These reactions usually disappear within 1-2 days without treatment. Rarely: Neuralgia, paresthesia, convulsions, and transient thrombocytopenia Allergic reactions leading to shock in rare cases. Vasculitis with transient renal involvement, in very rare cases.

Pregnancy & Lactation

Use in pregnancy: Safety of use during pregnancy has not been established; the benefits of vaccination should be weighed against potential risks. However, as an inactivated vaccine, it does not share the theoretical risks associated with live vaccines.

Precaution & Warnings

Since this vaccine contains traces of formaldehyde, octoxinol 9 (Triton X-100), and neomycin due to the use of these substances during production, it should be used with caution in subjects with a hypersensitivity to any of these substances. Patients with a history of Guillain-Barré Syndrome (GBS) with an onset related in time to influenza vaccination may be at increased risk of again developing GBS if given an influenza vaccine. Use in pregnancy & lactation: Safety of use during pregnancy has not been established; the benefits of vaccination should be weighed against potential risks. However, as an inactivated vaccine, it does not share the theoretical risks associated with live vaccines. It is not known if this is excreted in human milk; hence, caution should be used when administering vaccines to breastfeeding women. However, as an inactivated vaccine, it does not share the theoretical risks associated with live vaccines.

Storage of Influvax Tetra 0.5ml

• Keep it in the refrigerator stored between 2°C to 8°C.
• Do not freeze as freezing destroys the vaccine.
• Keep it where young children cannot reach it.