Varilrix 1000 PFU Injection 0.5ml

About Varilrix 1000 PFU Injection 0.5ml

Varilrix Injection Uses

• Protects against chickenpox (varicella) infection in children from 9 months of age and in adults
• Recommended for individuals with close contact to someone with chickenpox as post exposure prevention
• Given as part of routine or catch up immunization for people who have not had chickenpox before
• Used to protect high risk groups such as healthcare workers and women planning pregnancy who lack immunity

Varilrix Injection Benefits

• Significantly lowers the chance of developing chickenpox after exposure
• Reduces the severity of illness in the rare cases where infection still occurs after vaccination
• Two dose schedule provides longer lasting protection than a single dose
• Helps prevent complications of chickenpox such as skin infection and pneumonia

Drug Class

• Classified as a live attenuated viral vaccine
• Contains a weakened form of the varicella zoster virus
• Works by stimulating the immune system to build lasting protection

What Experts Say

Pediatricians and infectious disease specialists recommend varicella vaccination as the most reliable way to prevent chickenpox, since the live attenuated virus in Varilrix trains the immune system to recognize the real infection without causing disease. Chickenpox is still common across Pakistan, particularly in school aged children, and can occasionally lead to serious complications in adults or people with weak immunity.

Doctors usually recommend two doses given a few weeks apart for the strongest and longest lasting protection, rather than relying on a single dose. Vaccination is generally advised before school entry and is also considered for adults who never had chickenpox, since the illness tends to be more severe when it occurs later in life.

Specialists advise against vaccination during pregnancy or in people with significantly weakened immune systems, since it contains a live virus. Physicians typically recommend waiting at least one month after vaccination before becoming pregnant, so the vaccine is given only when it is truly safe for that individual.

Varilrix 1000 PFU Injection 0.5ml formula

• Varicella Virus Vaccine (Live Attenuated)

Available forms

• Injection

How to use Varilrix 1000 PFU Injection 0.5ml?

• Administered only by a doctor or trained healthcare provider, never self injected at home
• Given as a subcutaneous injection, usually in the upper arm
• Standard schedule is two doses, with the second dose given at least four to eight weeks after the first, depending on age
• The vaccine vial is reconstituted with the provided diluent immediately before use
• Your doctor will assess your immunity and health status before deciding if vaccination is appropriate

Drug Interactions

• Immunoglobulins And Blood Products: Recent transfusions or immunoglobulin therapy can reduce the vaccine's effectiveness, so timing must be spaced out
• Immunosuppressive Medicines: Steroids or other immune suppressing drugs can lower the immune response to the vaccine
• Salicylates: Aspirin should be avoided for six weeks after vaccination due to a rare risk of Reye syndrome
• Other Live Vaccines: Can generally be given at the same time as other live vaccines, but if not given together, doctors usually space them at least four weeks apart

Risks and warnings

• Pregnancy: Should not be given during pregnancy, and pregnancy should be avoided for at least one month after vaccination
• Weakened Immunity: Avoid in patients with significantly suppressed immune systems, including certain cancers or high dose steroid treatment
• Allergic Reactions: Not recommended for anyone with a known severe allergy to a previous dose or to any vaccine component including neomycin
• Active Illness: Vaccination is usually postponed during a fever or acute illness until recovery
• Blood Products: Inform the doctor if blood products or immunoglobulins were received recently, since these can reduce the vaccine's effectiveness

Varilrix 1000 PFU Injection 0.5ml Side Effects

• Pain, redness or swelling at the injection site
• Mild fever
• Rash resembling small chickenpox like spots
• Irritability or fussiness in young children
• Headache
• Tiredness
• Loss of appetite
• Rare allergic reactions such as swelling of the face or difficulty breathing

Storage Conditions

• Store in a refrigerator between 2°C and 8°C
• Protect the vial and diluent from light by keeping them in the outer carton
• Use the vaccine promptly after reconstitution as advised by the healthcare provider
• Do not attempt to store or transport outside a proper cold chain
• Keep out of reach of children and handle only through a healthcare facility