About hepatitis a vaccine adult
Inactivated hepatitis A vaccine
Used for
- Prevents hepatitis A infection in adults
- Used for routine vaccination and people at increased exposure risk
Usual adult dose
Two intramuscular doses: first dose, then a second 6–18 months later.
Usual dose in children
Not used in children; pediatric formulation is used for ages 12 months through 18 years.
Common side effects
- Injection-site pain, redness, or swelling
- Headache
- Fatigue
- Fever or nausea
Important warnings
- Do not use after a severe allergic reaction to a previous dose or vaccine component.
- Postpone vaccination during a serious illness; minor illness is usually not a reason to delay.
- May not protect people vaccinated during incubation or with weakened immune systems.
- Use caution with bleeding disorders or medicines that increase bleeding.
Pregnancy
Limited data are available; vaccination is generally considered when infection risk is substantial.
Breastfeeding
Not expected to pose a risk; breastfeeding is not a reason to delay vaccination.
Interactions
- Immune globulin may reduce the vaccine response; separate administration when possible.
- Immunosuppressive treatments may reduce the immune response.
- Can be given with other vaccines 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 It may be incomplete or out of date.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.