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.
Cancer and immunosuppression: Hepatitis A vaccine may not be as effective if you have cancer, if you are receiving immunosuppressive therapy (e.g., some medications used to treat cancer or for transplant recipients), or if you are immunocompromised (i.e., your immune system does not work properly).
Immunization record: Make sure any new doctors know that you have had this vaccination so that they can put this information in your immunization record.
Infection and fever: If you have an infection or fever, your doctor may recommend that you wait until you are better before receiving the hepatitis A vaccine.
Neomycin allergy: The vaccine may contain trace amounts of neomycin and thus may cause an allergic reaction in people who are allergic to neomycin.
Vaccine protection: As with any vaccine, this vaccine may not result in total protection from hepatitis A and may not prevent hepatitis A for people who are infected with the virus at the time of vaccination.
Pregnancy: This vaccine 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 the vaccine passes into breast milk. If you are a breast-feeding mother and are plan to receive this vaccine, 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 below the minimum age stated above.