Japanese encephalitis virus vaccine, inactivated (Injection)

Japanese Encephalitis Virus Vaccine, Inactivated (jap-a-NEEZ en-sef-a-LYTE-is VYE-rus VAX-een, in-AK-ti-vay-ted)

JE-VAX® prevents Japanese encephalitis (brain fever). This is a vaccine. This vaccine is no longer marketed in the United States.

Brand Name(s):

There may be other brand names for this medicine.

When This Medicine Should Not Be Used:

You should not receive this medicine if you have had an allergic reaction to Japanese encephalitis virus vaccine, thimerosal, or to mouse proteins.

How to Use This Medicine:


  • Your doctor will prescribe your exact dose and tell you how often it should be given. This medicine is given as a shot under your skin.
  • A nurse or other health provider will give you this medicine.

Drugs and Foods to Avoid:

Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.

  • Do not drink alcohol while you are using this medicine. Do not drink large amounts of alcohol within 2 days of the vaccine shot.

Warnings While Using This Medicine:

  • Make sure your doctor knows if you are pregnant or breast feeding, or if you have any allergies.
  • Avoid traveling to foreign countries within 10 days of the vaccine shot.
  • To prevent mosquito bites, avoid outdoor activities and use insect repellents when you are outdoors during hot weather.
  • Make sure your doctor knows if you have received any vaccine shot in the last 7 days.

Possible Side Effects While Using This Medicine:

Call your doctor right away if you notice any of these side effects:

  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
  • Blurred vision.
  • Decrease in how much or how often you urinate.
  • Fever or chills.
  • Light-headedness or fainting.
  • Nausea, vomiting, or stomach pain.
  • Weakness of your arms or legs.
  • Yellowing of your skin or the white of your eyes.

If you notice these less serious side effects, talk with your doctor:

  • Dizziness or headache.
  • Muscle pain.
  • Pain, swelling, redness, or itching at the site where the vaccine shot was given.
  • Runny or stuffy nose.
  • Swelling of your joints.

If you notice other side effects that you think are caused by this medicine, tell your doctor

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088

Last Updated: 9/4/2017

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