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IXIARO

The U.S. Food and Drug Administration’s Center for Biologics Evaluation and Research suspended the license for IXCHIQ® on August 22, 2025. IXCHIQ® may not be distributed or administered in the United States until further notice.

Important Safety Information Prescribing Information For Healthcare Professionals
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Where can I find IXIARO?

Find a travel health provider in your area who may stock and administer IXIARO. ​

      DISCLAIMER

      Valneva does not receive payment for this service and does not endorse or recommend any travel health providers that have chosen to be listed. All referrals are identified based upon geographic criteria only. Valneva does not guarantee the accuracy of the listings, as the travel health providers are responsible for providing current contact information. Further, Valneva does not have oversight of and is not responsible for the actions of any travel health provider. If you have any questions about JE vaccination, selection of a travel health provider, or other aspects of your health care, you should contact your physician.

      What is IXIARO used for?

      • IXIARO is a vaccine for use in individuals 2 months of age and older to help protect against Japanese encephalitis (JE). You cannot get the disease from IXIARO.
      • You will need 2 doses of the vaccine.
      • You should consult your health care provider on the need for a booster dose of IXIARO
      • You should still protect yourself from mosquito bites even if you have had the IXIARO vaccine.
      • IXIARO may not fully protect everyone who gets the vaccine.
      • IXIARO does not protect against encephalitis caused by other viruses/pathogens.
      • IXIARO does not protect against other diseases transmitted by mosquitoes.

      Important Safety Information

      You should not get IXIARO if you:

      • are allergic to any of the ingredients in the vaccine. A list of ingredients can be found at the end of this leaflet.
      • had an allergic reaction after getting a dose of the vaccine or any other JEV vaccine.

      IXIARO is not approved for use in infants below the age of 2 months.

      What Warnings should I know about IXIARO?

      • IXIARO can cause allergic reactions. Tell your health care provider immediately if you experience difficulty breathing, hoarseness or wheezing, hives, or dizziness, weakness, or fast heartbeat.
      • Fainting can occur with administration of IXIARO.
      • Vaccination with IXIARO may not protect all who receive the vaccine.

      What should I tell my health care provider?

      It is very important to tell your health care provider if you:

      • have had an allergic reaction to a previous dose of IXIARO or any other JEV vaccine.
      • have a bleeding disorder or a reduction in blood platelets, which increases risk of bleeding
      • or bruising (thrombocytopenia) and cannot receive injections in the arm.
      • have a weakened immune system, for example, due to a genetic defect or HIV infection.
      • are or may be pregnant, or are breast feeding. IXIARO has not been studied in pregnant women or nursing mothers.
      • currently have any illness with a fever of more than 100 F (37.8 C).
      • take any medicines, even those you can buy over the counter.

      What are the side effects of IXIARO?

      The most common side effects in adolescents >12 years of age and adults are headache, muscle pain and injection site reactions (e.g. pain, swelling, tenderness, redness). Nausea, skin rash, fatigue, flu-like illness, fever, irritability and loss of appetite may also occur.

      The most common side effects in children below the age of 12 years are fever, irritability, diarrhea, vomiting, loss of appetite, injection site pain and injection site redness.

      Contact your health care provider right away if you get any symptoms after receiving IXIARO that concern you.
      Tell your health care provider if you have any of the following problems because these may be signs of an allergic reaction:

      • difficulty breathing
      • hoarseness or wheezing
      • hives
      • dizziness, weakness or fast heart beat

      You are encouraged to report suspected adverse reactions to Valneva at 1-844-349-4276 or VAERS at 1-800-822-7967 or http://vaers.hhs.gov.

      Please click here for full Prescribing Information for IXIARO.

      What is IXIARO used for?

      • IXIARO is a vaccine for use in individuals 2 months of age and older to help protect against Japanese encephalitis (JE). You cannot get the disease from IXIARO.
      • You will need 2 doses of the vaccine.
      • You should consult your health care provider on the need for a booster dose of IXIARO
      • You should still protect yourself from mosquito bites even if you have had the IXIARO vaccine.
      • IXIARO may not fully protect everyone who gets the vaccine.
      • IXIARO does not protect against encephalitis caused by other viruses/pathogens.
      • IXIARO does not protect against other diseases transmitted by mosquitoes.

      You should not get IXIARO if you:

      • are allergic to any of the ingredients in the vaccine. A list of ingredients can be found at the end of this leaflet.
      • had an allergic reaction after getting a dose of the vaccine or any other JEV vaccine.

      IXIARO is not approved for use in infants below the age of 2 months.

      What Warnings should I know about IXIARO?

      • IXIARO can cause allergic reactions. Tell your health care provider immediately if you experience difficulty breathing, hoarseness or wheezing, hives, or dizziness, weakness, or fast heartbeat.
      • Fainting can occur with administration of IXIARO.
      • Vaccination with IXIARO may not protect all who receive the vaccine.

      What should I tell my health care provider?

      It is very important to tell your health care provider if you:

      • have had an allergic reaction to a previous dose of IXIARO or any other JEV vaccine.
      • have a bleeding disorder or a reduction in blood platelets, which increases risk of bleeding
      • or bruising (thrombocytopenia) and cannot receive injections in the arm.
      • have a weakened immune system, for example, due to a genetic defect or HIV infection.
      • are or may be pregnant, or are breast feeding. IXIARO has not been studied in pregnant women or nursing mothers.
      • currently have any illness with a fever of more than 100 F (37.8 C).
      • take any medicines, even those you can buy over the counter.

      What are the side effects of IXIARO?

      The most common side effects in adolescents >12 years of age and adults are headache, muscle pain and injection site reactions (e.g. pain, swelling, tenderness, redness). Nausea, skin rash, fatigue, flu-like illness, fever, irritability and loss of appetite may also occur.

      The most common side effects in children below the age of 12 years are fever, irritability, diarrhea, vomiting, loss of appetite, injection site pain and injection site redness.

      Contact your health care provider right away if you get any symptoms after receiving IXIARO that concern you.
      Tell your health care provider if you have any of the following problems because these may be signs of an allergic reaction:

      • difficulty breathing
      • hoarseness or wheezing
      • hives
      • dizziness, weakness or fast heart beat

      You are encouraged to report suspected adverse reactions to Valneva at 1-844-349-4276 or VAERS at 1-800-822-7967 or http://vaers.hhs.gov.

      Please click here for full Prescribing Information for IXIARO.

      What is IXIARO used for?

      • IXIARO is a vaccine for use in individuals 2 months of age and older to help protect against Japanese encephalitis (JE). You cannot get the disease from IXIARO.
      • You will need 2 doses of the vaccine.
      • You should consult your health care provider on the need for a booster dose of IXIARO
      • You should still protect yourself from mosquito bites even if you have had the IXIARO vaccine.
      • IXIARO may not fully protect everyone who gets the vaccine.
      • IXIARO does not protect against encephalitis caused by other viruses/pathogens.
      • IXIARO does not protect against other diseases transmitted by mosquitoes.

      Important Safety Information

      You should not get IXIARO if you:

      • are allergic to any of the ingredients in the vaccine. A list of ingredients can be found at the end of this leaflet.
      • had an allergic reaction after getting a dose of the vaccine or any other JEV vaccine.

      IXIARO is not approved for use in infants below the age of 2 months.

      What Warnings should I know about IXIARO?

      • IXIARO can cause allergic reactions. Tell your health care provider immediately if you experience difficulty breathing, hoarseness or wheezing, hives, or dizziness, weakness, or fast heartbeat.
      • Fainting can occur with administration of IXIARO.
      • Vaccination with IXIARO may not protect all who receive the vaccine.

      What should I tell my health care provider?

      It is very important to tell your health care provider if you:

      • have had an allergic reaction to a previous dose of IXIARO or any other JEV vaccine.
      • have a bleeding disorder or a reduction in blood platelets, which increases risk of bleeding
      • or bruising (thrombocytopenia) and cannot receive injections in the arm.
      • have a weakened immune system, for example, due to a genetic defect or HIV infection.
      • are or may be pregnant, or are breast feeding. IXIARO has not been studied in pregnant women or nursing mothers.
      • currently have any illness with a fever of more than 100 F (37.8 C).
      • take any medicines, even those you can buy over the counter.

      What are the side effects of IXIARO?

      The most common side effects in adolescents >12 years of age and adults are headache, muscle pain and injection site reactions (e.g. pain, swelling, tenderness, redness). Nausea, skin rash, fatigue, flu-like illness, fever, irritability and loss of appetite may also occur.

      The most common side effects in children below the age of 12 years are fever, irritability, diarrhea, vomiting, loss of appetite, injection site pain and injection site redness.

      Contact your health care provider right away if you get any symptoms after receiving IXIARO that concern you.
      Tell your health care provider if you have any of the following problems because these may be signs of an allergic reaction:

      • difficulty breathing
      • hoarseness or wheezing
      • hives
      • dizziness, weakness or fast heart beat

      You are encouraged to report suspected adverse reactions to Valneva at 1-844-349-4276 or VAERS at 1-800-822-7967 or http://vaers.hhs.gov.

      Please click here for full Prescribing Information for IXIARO.

      What is IXIARO used for?

      • IXIARO is a vaccine for use in individuals 2 months of age and older to help protect against Japanese encephalitis (JE). You cannot get the disease from IXIARO.
      • You will need 2 doses of the vaccine.
      • You should consult your health care provider on the need for a booster dose of IXIARO
      • You should still protect yourself from mosquito bites even if you have had the IXIARO vaccine.
      • IXIARO may not fully protect everyone who gets the vaccine.
      • IXIARO does not protect against encephalitis caused by other viruses/pathogens.
      • IXIARO does not protect against other diseases transmitted by mosquitoes.

      You should not get IXIARO if you:

      • are allergic to any of the ingredients in the vaccine. A list of ingredients can be found at the end of this leaflet.
      • had an allergic reaction after getting a dose of the vaccine or any other JEV vaccine.

      IXIARO is not approved for use in infants below the age of 2 months.

      What Warnings should I know about IXIARO?

      • IXIARO can cause allergic reactions. Tell your health care provider immediately if you experience difficulty breathing, hoarseness or wheezing, hives, or dizziness, weakness, or fast heartbeat.
      • Fainting can occur with administration of IXIARO.
      • Vaccination with IXIARO may not protect all who receive the vaccine.

      What should I tell my health care provider?

      It is very important to tell your health care provider if you:

      • have had an allergic reaction to a previous dose of IXIARO or any other JEV vaccine.
      • have a bleeding disorder or a reduction in blood platelets, which increases risk of bleeding
      • or bruising (thrombocytopenia) and cannot receive injections in the arm.
      • have a weakened immune system, for example, due to a genetic defect or HIV infection.
      • are or may be pregnant, or are breast feeding. IXIARO has not been studied in pregnant women or nursing mothers.
      • currently have any illness with a fever of more than 100 F (37.8 C).
      • take any medicines, even those you can buy over the counter.

      What are the side effects of IXIARO?

      The most common side effects in adolescents >12 years of age and adults are headache, muscle pain and injection site reactions (e.g. pain, swelling, tenderness, redness). Nausea, skin rash, fatigue, flu-like illness, fever, irritability and loss of appetite may also occur.

      The most common side effects in children below the age of 12 years are fever, irritability, diarrhea, vomiting, loss of appetite, injection site pain and injection site redness.

      Contact your health care provider right away if you get any symptoms after receiving IXIARO that concern you.
      Tell your health care provider if you have any of the following problems because these may be signs of an allergic reaction:

      • difficulty breathing
      • hoarseness or wheezing
      • hives
      • dizziness, weakness or fast heart beat

      You are encouraged to report suspected adverse reactions to Valneva at 1-844-349-4276 or VAERS at 1-800-822-7967 or http://vaers.hhs.gov.

      Please click here for full Prescribing Information for IXIARO.