Engerix-B Injection 10mcg / 0.5ml

About Engerix-B Injection 10mcg / 0.5ml

Engerix-B Injection 10mcg / 0.5ml Uses

• Active immunization of infants and children against hepatitis B virus infection
• Birth dose protection for newborns as advised by the doctor
• Completion of the routine schedule with doses at 0, 1, and 6 months
• Urgent protection of babies born to mothers who carry hepatitis B
• Catch up vaccination for children who missed earlier doses
• Protection of children before school entry or travel when advised

Engerix-B Injection 10mcg / 0.5ml Benefits

• Protects against a virus that can silently cause lifelong liver infection
• Lowers the future risk of cirrhosis and liver cancer linked to hepatitis B
• Produces protective antibodies in over 90 percent of healthy children
• Protection lasts many years, often decades, after the full course
• Made by recombinant technology, so it cannot cause hepatitis B infection
• Fits easily alongside routine childhood immunization visits

What Experts Say

Engerix-B contains hepatitis B surface antigen produced in yeast cells through recombinant DNA technology. Once injected into muscle, the antigen trains the immune system to make protective antibodies without any exposure to the live virus. The 10mcg in 0.5ml presentation is the paediatric strength, designed for newborns, infants, and children as advised by a doctor.

Hepatitis B remains a significant public health concern in Pakistan, and childhood vaccination is the most effective way to cut new infections. The vaccine is part of routine childhood immunization across the country. Babies born to mothers who carry the virus need the first dose as soon as possible after delivery, often together with hepatitis B immunoglobulin.

Paediatricians give the injection into the front outer thigh in infants and the upper arm in older children, never into the buttock or a vein. An antibody level of 10 international units per liter or more after the course signals protection. Doctors postpone the dose during a high fever and keep the vaccine refrigerated between 2 and 8 degrees Celsius until use.

Drug Class

• Recombinant Hepatitis B Vaccine

Engerix-B Injection 10mcg / 0.5ml formula

• Recombinant Hepatitis B Surface Antigen 10mcg / 0.5ml

Available forms

• Injection

How to use Engerix-B Injection 10mcg / 0.5ml?

• Given as an injection into the muscle by a doctor or trained vaccinator only.
• Infants receive it in the front outer thigh, older children in the upper arm.
• The usual schedule is a dose at 0, 1, and 6 months as advised by the doctor.
• Complete every dose in the series, since partial courses give weaker protection.
• Keep the child seated or lying down briefly after the injection.
• Delay the dose if the child has a high fever; a mild cold is usually not a reason to postpone.
• Keep the vaccination card updated so no dose in the series is missed.

Drug Interactions

• Immunosuppressant medicines: Chemotherapy, high dose corticosteroids, and biologic drugs can blunt the antibody response, so extra doses or testing may be needed.
• Hepatitis B immunoglobulin: Can be given at the same visit for newborns of infected mothers, but always at a separate injection site and never mixed in one syringe.
• Other childhood vaccines: Routine vaccines can be given on the same day, using separate syringes and separate injection sites.
• Blood thinning medicines: Anticoagulants raise the risk of bruising or bleeding from an intramuscular injection, so inform the vaccinator first.

Risks and warnings

• Allergy alert: A child who had a severe allergic reaction to a previous hepatitis B dose or to yeast must not receive this vaccine.
• Anaphylaxis precaution: Vaccination should take place where emergency treatment for a rare severe reaction is immediately available.
• Fever or acute illness: Postpone the injection during a moderate or severe febrile illness and vaccinate once the child recovers.
• Premature babies: Very low birth weight infants may respond less strongly, so the doctor decides the best timing and schedule.
• Weakened immunity: Children on chemotherapy, dialysis, or long term steroids may need extra doses or antibody testing.
• Not a treatment: The vaccine prevents infection but cannot treat existing hepatitis B and gives no protection against hepatitis A, C, or E.

Engerix-B Injection 10mcg / 0.5ml Side Effects

• Pain or soreness at the injection site
• Redness or swelling where the shot was given
• Low grade fever
• Fussiness or irritability in infants
• Tiredness or drowsiness
• Loss of appetite
• Headache in older children
• Nausea or mild stomach upset
• Muscle or joint aches
• Mild itching or rash
• Severe allergic reaction, which is very rare

Storage Conditions

• Store in a refrigerator between 2 and 8 degrees Celsius at all times.
• Never freeze; discard the vaccine if it has been frozen.
• Keep the vial or syringe in its original carton to protect from light.
• Maintain the cold chain during transport until the moment of use.
• Keep out of the sight and reach of children.