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.
Bleeding problems: There is a risk of increased bleeding or bruising when any intramuscular injection is given to a person who has a bleeding disorder or is taking medications to thin the blood. The safety and effectiveness of this vaccine have not been established for people with thrombocytopenia (low platelets) or bleeding disorders. If you have any of these conditions, discuss the risk and benefits of this vaccine with your doctor.
Fever: A doctor may decide to delay this vaccine if the person receiving the vaccine has an acute infection or fever. Mild infections without fever, such as colds, usually do not require delay of the vaccine.
Immune problems: When used for people with impaired immune systems, meningococcal vaccines may not create enough of an antibody response to protect against infections caused by these bacteria. Also, this vaccine may not be effective for people receiving immunosuppressive therapy (e.g., some medications used to treat cancer or for transplant recipients).
Pregnancy: This medication should not be used during pregnancy unless the benefits outweigh the risks. If you are or may be pregnant, discuss the risks and benefits of receiving this vaccine.
Breast-feeding: It is not known if meningococcal 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 12 months of age.
Seniors: The safety and effectiveness of using this medication have not been established for adults over 55 years of age.