Before you begin using a medication, be sure to inform your doctor of any medical conditions or allergies you may have, any medications you are taking, whether you are pregnant or breast-feeding, and any other significant facts about your health. These factors may affect how you should use this medication.
Allergic reactions: Rarely, this vaccine may cause severe allergic reactions. If you notice the signs of a severe allergic reaction (hives; trouble breathing or swallowing; or swelling of the lips, face, throat, or tongue), get emergency medical attention immediately. In addition, the vaccine may contain trace amounts of neomycin and thus may cause an allergic reaction in people who are allergic to neomycin.
Immunocompromised people: Hepatitis A - typhoid may not be as effective for people with a compromised immune system (e.g., people who have AIDS, are taking anti-rejection medications after an organ transplant, are receiving chemotherapy, or are taking any medication that suppresses the immune system). Talk to your doctor if you have any concerns.
Infection and fever: If you have an acute infection or fever, administration of the hepatitis A - typhoid vaccine should be delayed except when, in the opinion of the doctor, the benefits outweigh the risks.
Protection against hepatitis A and typhoid: As with any vaccine, this vaccine may not protect 100% of people who receive it. Take all necessary precautions to avoid contact with, or ingestion of, potentially contaminated sources of food or water (e.g., drink bottled or boiled water, wash hands before eating and after using toilet facilities). This is especially important if the vaccine is given less than 2 weeks before arriving at the area with hepatitis A and typhoid exposure risk.
Pregnancy: The medication should not be used during pregnancy unless the benefits outweigh the risks. If you become pregnant while taking this medication, contact your doctor immediately.
Breast-feeding: It is not known if hepatitis A - typhoid vaccine passes into breast milk. If you are a breast-feeding mother and are taking this medication, it may affect your baby. Talk to your doctor about whether you should continue breast-feeding.
Children: The safety and effectiveness of using this medication have not been established for children under 16 years of age.