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Ixiaro Patient Information including How Should I Take

What should I discuss with my healthcare provider before receiving this vaccine (Ixiaro)?

You should not receive this vaccine if you have ever had a life-threatening allergic reaction to a Japanese encephalitis vaccine.

Before receiving this vaccine, tell the doctor if you are allergic to any foods or drugs, or if you have:

  • a bleeding or blood clotting disorder;
  • a weak immune system caused by disease such as HIV or AIDS, bone marrow transplant, or by using certain medicines or receiving cancer treatments.

You can still receive a vaccine if you have a cold or low fever. In the case of a more severe illness with a high fever (more than 100 degrees) or any type of infection, wait until you get better before receiving this vaccine.

Vaccines may be harmful to an unborn baby and generally should not be given to a pregnant woman. However, not vaccinating the mother could be more harmful to the baby if the mother becomes infected with a disease that this vaccine could prevent. Your doctor will decide whether you should receive this vaccine, especially if you have a high risk of infection with the Japanese encephalitis virus.

It is not known whether Japanese encephalitis vaccine passes into breast milk or if it could harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.

How is this vaccine given (Ixiaro)?

This vaccine is given as an injection (shot) into a muscle of your upper arm. You will receive this injection in a doctor's office or other clinic setting.

The Japanese encephalitis SA14-14-2 vaccine is given in a series of 2 shots. The shots are usually 28 days apart. Your individual booster schedule may be different from these guidelines. Follow your doctor's instructions or the schedule recommended by the health department of the state you live in.

In addition to receiving the Japanese encephalitis vaccine, use protective clothing, insect repellents, and mosquito netting around your bed to further prevent mosquito bites that could infect you with the Japanese encephalitis virus.

Side Effects Centers

Report Problems to the Food and Drug Administration


You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

Women's Health

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