Influvac

Influenza virus vaccine, the active ingredient in Influvac, is a vaccine presented as an injectable solution for intramuscular or subcutaneous use. It is intended to prevent seasonal influenza infection caused by influenza A and B viruses in individuals at risk, including adults and children.

GNH USA supplies Influvac as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Influvac is a vaccine that provides prophylactic protection against influenza viruses. - Seasonal influenza (influenza A and B): Reduces the risk of infection and severity of disease. - Adults at high risk (elderly, chronic conditions): Lowers incidence and complications of flu. - Children (6 months to 17 years): Induces protective antibodies against circulating strains.

Common Side Effects: - Injection site pain: Mild to moderate discomfort at the injection site. - Redness or swelling: Localized erythema or edema. - Low‑grade fever: Transient rise in body temperature. - Headache: Mild headache occurring within 24 hours. - Myalgia: Muscle aches lasting a day or two. - Fatigue: Temporary feeling of tiredness.

Serious or Rare Side Effects: - Anaphylaxis: Severe allergic reaction requiring immediate medical attention. - Guillain‑Barré syndrome: Rare neurological disorder with muscle weakness. - Seizures: Uncommon neurologic event post‑vaccination. - High fever: Persistent temperature above 39°C. - Severe local reaction: Extensive swelling or necrosis at injection site.

Before administering Influvac, consider the following precautions: - Allergy assessment: Verify no previous severe reaction to influenza vaccines. - Acute illness: Postpone vaccination if the individual has a moderate or severe fever. - Pregnancy: Discuss potential benefits and limited data with a healthcare provider. - Immunocompromised status: Anticipate possibly reduced immune response. - Store at 2-8°C: Keep refrigerated, protect from light, do not freeze or shake.

Vaccination may be influenced by other medical products. Major Interactions (Avoid): - Concurrent immunoglobulin therapy: May diminish vaccine‑induced immunity. - Live viral vaccines administered within 14 days: Potential interference with immune response. Moderate Interactions (Monitor Closely): - Antipyretics (e.g., acetaminophen) taken prophylactically: May slightly reduce antibody titers. - Corticosteroids or immunosuppressants: May lower vaccine efficacy. - Antiviral medications (e.g., oseltamivir) started before vaccination: Monitor for adequate immune response.