Japanese Encephalitis Vaccine
Ixiaro is a brand-name inactivated vaccine used to protect against Japanese encephalitis, a serious mosquito-borne viral infection that can cause brain inflammation. It is primarily recommended for adults and children traveling to endemic regions in Asia and the Western Pacific, particularly those planning extended stays or activities in rural areas where the disease is common.
Ixiaro is an inactivated Japanese encephalitis vaccine for travelers to endemic regions in Asia and the Western Pacific.
Key facts at a glance
- RxNorm
- 845529
- Generic
- Ixiaro
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Ixiaro is indicated for active immunization against Japanese encephalitis virus, recommended for travelers 2 months of age and older who are traveling to or living in endemic areas of Asia and the Western Pacific where the virus is transmitted by mosquitoes, particularly those with planned outdoor exposure or extended stays in rural regions.
Ixiaro is an inactivated (killed) virus vaccine that stimulates the immune system to produce antibodies against the Japanese encephalitis virus. By introducing non-infectious viral antigens, the vaccine prepares the body's immune defenses to recognize and fight the virus if exposure occurs.
Common side effects may include injection site pain, headache, and muscle pain. As with all vaccines, there is a risk of allergic reactions. It is contraindicated in individuals with known severe hypersensitivity to any vaccine component. Travelers should consult a healthcare provider well before travel to ensure adequate time for the multi-dose vaccination schedule.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed July 26, 2026. · Read our editorial policy