Influvac

influenza virus vaccine, the active ingredient in Influvac, is a vaccine presented as an injectable solution for intramuscular or subcutaneous use. It prevents influenza infection caused by influenza A and B viruses in individuals at risk.

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

Influvac is a vaccine that targets the influenza virus family to provide active immunization against seasonal flu. - Seasonal influenza (influenza A and B): provides active immunization to reduce the incidence of flu illness. - High‑risk populations (elderly, chronic disease patients): lowers the risk of severe influenza complications. - Community health programs: contributes to herd immunity and reduces overall flu transmission.

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 temperature rise. - Headache: mild headache within 24 hours. - Myalgia: muscle aches. - Fatigue: temporary tiredness.

Serious or Rare Side Effects: - Anaphylaxis: severe allergic reaction requiring immediate medical care. - Guillain‑Barré syndrome: rare neurological disorder. - Severe allergic reaction: urticaria, angioedema, or respiratory distress. - High fever: temperature >39 °C persisting beyond 48 hours. - Seizures: uncommon neurologic event. - Myocarditis: rare inflammation of heart muscle.

Before administration, consider the following precautions: - Severe allergy: avoid if the patient has a known hypersensitivity to any vaccine component. - Acute illness: postpone vaccination in individuals with moderate or severe febrile illness. - Prior Guillain‑Barré syndrome: evaluate risk‑benefit before use. - Pregnancy and lactation: administer only if potential benefits outweigh theoretical risks. - Immunocompromised patients: vaccine may be less effective; monitor response. - Store at 2‑8 °C: keep refrigerated, protect from light, do not freeze or shake.

Vaccines can interact with other agents that affect immune response. Major Interactions (Avoid): - Immunoglobulin therapy: may diminish vaccine‑induced immunity. - Live viral vaccines: avoid simultaneous administration due to potential interference. Moderate Interactions (Monitor Closely): - Antipyretics (acetaminophen, ibuprofen): prophylactic use may reduce antibody response. - Immunosuppressive therapy: may lower vaccine efficacy. - Corticosteroids: may affect immune response to the vaccine.