What should you know about Havrix hepatitis A vaccine?

Hepatitis A is a viral illness that affects the liver and can spread through contaminated food, water, or close contact. The vaccine presents a non-infectious form of hepatitis A material so the immune system can recognise it and build protection. Havrix is used for prevention, not for treating an illness that has already started. Protection and the need for follow-up doses depend on age, health, travel plans, exposure risk, and the product schedule advised locally.

A sore arm, tiredness, headache, or a mild temperature can occur after vaccination. These reactions are generally short-lived. Tell the vaccinator about previous vaccine reactions, severe allergies, pregnancy, immune conditions, or medicines that affect immunity.

Ask a clinician whether Havrix is suitable and whether you need a second dose or another hepatitis A vaccine plan. Bring your vaccination history if available. After the injection, keep the area clean and follow the advice given for discomfort. Do not rely on the vaccine to treat nausea, loss of appetite, dark urine, or feeling generally unwell; these can need assessment for hepatitis A or another cause. A liver function test may be considered when symptoms or examination findings suggest liver irritation.

Seek urgent help for trouble breathing, swelling of the face or throat, widespread rapidly developing hives, fainting, or severe weakness after vaccination. Contact a clinician promptly if fever or pain is severe, symptoms are worsening, or you develop yellow skin or eyes, dark urine, repeated vomiting, or marked drowsiness. These symptoms should be assessed rather than assumed to be a vaccine reaction.

Ask: Do I need Havrix for travel, household exposure, work, or another risk? Which dose schedule applies to me? Could my medicines or health conditions change the plan? What symptoms should prompt a review?