About hepatitis a virus antigen
Inactivated hepatitis A vaccine
Used for
- Prevention of hepatitis A in adults.
Usual adult dose
One intramuscular dose, followed by a second dose 6–12 months later.
Common side effects
- Injection-site pain, redness, or swelling
- Headache
- Fatigue
- Mild fever
Important warnings
- Do not give to anyone with a severe allergic reaction to a previous dose or vaccine component.
- May not protect people vaccinated after exposure or during the incubation period.
- People with weakened immune systems may have a reduced response.
- Vaccination may be postponed during a severe illness.
Pregnancy
Use when protection is needed; available evidence has not identified a vaccine-related pregnancy risk.
Breastfeeding
May be given while breastfeeding when vaccination is indicated.
Interactions
- Immune globulin can reduce vaccine response; separate administration when possible.
- Other vaccines may generally be given at the same visit, at separate injection sites.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.